Archive for the ‘Quantum Computer’ Category
A combination of tech and medicine – Spectrum News 1
Posted: June 2, 2024 at 2:44 am
CLEVELAND The Cleveland Clinic and IBM have published findings focused on using quantum computing to better understand how diseases spread and thus how to develop effective therapies.
Specifically, this work was published in the Journal of Chemical Theory and Computation. It sought to learn how quantum computing could be used to predict protein structures, according to a Cleveland Clinic release.
For decades, researchers have leveraged computational approaches to predict protein structures, the release reads. A protein folds itself into a structure that determines how it functions and binds to other molecules in the body. These structures determine many aspects of human health and disease.
This work came from the Cleveland Clinic-IBM Discovery Accelerator partnership, their first peer-reviewed paper on quantum computing. It was a team led by Cleveland Clinic postdoctoral fellow Dr. Bryan Raubenolt and IBM researcher Dr. Hakan Doga.
One of the most unique things about this project is the number of disciplines involved, Raubenolt said in the release. Our teams expertise ranges from computational biology and chemistry, structural biology, software and automation engineering, to experimental atomic and nuclear physics, mathematics, and of course quantum computing and algorithm design. It took the knowledge from each of these areas to create a computational framework that can mimic one of the most important processes for human life.
The release notes that machine learning has resulted in major strides when it comes to predicting protein structures, explaining that the way this works comes down to the training data.
The limitation with this is that the models only know what theyre taught, leading to lower levels of accuracy when the programs/algorithms encounter a protein that is mutated or very different from those on which they were trained, which is common with genetic disorders.
An alternative option is to rely on simulations to emulate the physics of protein folding. Using these simulations, the goal is to find the most stable shape, which the release describes as crucial for designing drugs.
Once you reach a certain size of protein, this becomes quite difficult on a standard computer, however. Raubenolt explained in the release that even a small protein with just 100 amino acids would take a classical computer the time equal to the age of the universe to exhaustively search all the possible outcomes
Thats why the researchers utilized both quantum and classic computing methods in their work. The release states that this hybrid approach outperformed previous methods and resulted in increased accuracy.
According to the release, the researchers will continue working on and improving these algorithms.
This work is an important step forward in exploring where quantum computing capabilities could show strengths in protein structure prediction, Doga said in the release. Our goal is to design quantum algorithms that can find how to predict protein structures as realistically as possible.
Continued here:
What Teaching Thousands in Quantum Taught One Rising STEM Leader – The Quantum Insider
Posted: at 2:44 am
Sanskriti Deva, an Indian-American quantum engineer and passionate STEM educator, has an extraordinary story to share. Having taught over 10,000 people about the fascinating realm of quantum computingfrom elementary schoolers to industry professionalsher journey has yielded profound lessons that transcend scientific boundaries.
For Deva, who at 17 became one of the youngest elected officials and got to bring a lot of youth engagement to the United Nations as a member of Gen Z, the path to quantum enlightenment began with an unlikely source of inspirationsuperhero movies.
Im a really big comic fan and I love the Marvel Cinematic Universe. I kept hearing that word [quantum] over and over again I became more interested in what it meant, she explained during a recent TEDx talk at North Carolina State University.
However, Devas initial self-doubt nearly prevented her from embarking on this quantum adventure.
Honestly, if you had asked me like five years ago if I would be on stage talking about quantum computers, I would have said no, thats impossible. Im not smart enough, she admitted. It was her students who helped her overcome this mindset, leading to her first powerful realization: You dont have to be an innate genius or super talented at something to pursue something that youre passionate about.
Devas second lesson came from witnessing her students shared struggles and triumphs.
I learned this when I started teaching quantum computing for the first timeit was honestly the first time I had interacted with other people that were interested in the same subject I was, she said. There are people out there who like the same thing you do, regardless of how niche it is, and there are people out there that are also facing the same issues that you are as well.
But it was her youngest pupils who imparted perhaps the most profound wisdom.
They raised their hand and they said, I want to be a quantum computing princess ballerina dancer boxer president, or they said something like, Why not? I thought this would be cool, Deva recounted. From their unencumbered perspectives, she realized: You dont have to just choose one thing. You can be a multitude of things.
Reflecting on this revelation, Deva expressed that she believes our quality of life improves when we, like quantum particles that exist in dual states, embrace our multitude of identities and our multifaceted nature.
She passionately urged her audience: I encourage you to become an engineer and an artist, a scientist and a storyteller, a princess and a president.
Sanskriti Devas extraordinary journey from aspiring quantum student to esteemed educator has yielded profound insights into the boundless potential of curiosity, community, and self-acceptance. Her inspirational call to embrace the superposition of our multidimensional identities resonates far beyond the realm of quantum physics, reminding us all to fearlessly explore the infinite possibilities that lie within.
Featured image: Credit: TEDx
More here:
What Teaching Thousands in Quantum Taught One Rising STEM Leader - The Quantum Insider
Quantum Computing’s Transformative Potential Highlighted at Qatar Economic Forum 2024 – The Quantum Insider
Posted: at 2:44 am
At an intriguing session at the Qatar Economic Forum 2024, Michael Biercuk and Rajeeb Hazra discussed the mystery surrounding quantum computing and its colossal transformative potential across global industries. The world is on the brink of a quantum revolution. The insights that he brings to bear on the future of this enabling technology invoke suspense.
In his comments on the highly debated topic of quantum supremacy, Biercuk noted current tangible steps taken in this direction.
Were legitimately talking about comparing todays quantum computers to the worlds biggest supercomputers, said Biercuk. Thats the kind of comparison we make. This statement stresses the remarkable things achieved in harnessing the counterintuitive principles of quantum mechanics for computational prowess.
However, Biercuk cautioned against the allure of fantasies surrounding quantum computing, saying: Quantum computing is not magic pudding. It doesnt solve everything. It doesnt fix everything. It doesnt replace all computers. His pragmatic stance highlights the need for a grounded understanding of quantum computings capabilities and limitations.
Hazra, the CEO of Quantinuum, echoed this sentiment: Quantum gives us the ability to look at physical interactions in a way, and then from that create new physical things that you couldnt have done before. He pinpointed areas where the greatest change lies in quantum computing: for example, personalized medicine, sustainable energy and materials science through models of chemical interactions which could lead to breakthrough innovations.
One of the pressing concerns surrounding quantum computing is the potential for exacerbating societal inequalities due to its anticipated high cost and complexity. Addressing this, Hazra expressed optimism.
The advent of quantum computing in an era where cloud is pervasive is a very good way to democratize access, said Hazra. His vision aligns with the ethos of open science and collaboration, which has been a driving force behind quantum computings progress.
Biercuk echoed this sentiment, pointing out the importance of international cooperation: The thing that will hurt us the most, that will lead to the greatest inequality in a really negative sense is techno nationalism. His words serve as a rallying cry against isolationist tendencies that could impede the equitable distribution of quantum computings benefits.
Amidst the quantum computing race, there are insights that come from Biercuk and Hazra which provide a reasoned perspective. Building a case for caution in terms that may fly in the face of the revolutionary promise that quantum computation often evokes, theirs is a disruptive potential combined with respect for where that potential actually lies. It will ensure international collaboration in pursuit of an in-depth understanding of the capabilities and limitations of the technology, and in the process of harnessing the quantum revolution, we shall make a better future for all.
Featured image: Credit: Qatar Economic Forum 2024
Go here to read the rest:
Researchers at Tsinghua University Achieve Largest-Scale Ion Trap Quantum Simulation – HPCwire
Posted: at 2:44 am
May 31, 2024 The research group led by Prof. Luming Duan at Tsinghua University has recently achieved a significant breakthrough in the field of quantum simulation. For the first time, researchers realized the stable trapping and cooling of a two-dimensional crystal of up to 512 ions and performed a quantum simulation with 300 ion qubits.
This work marks the worlds largest-scale multi-ion quantum simulation with single-qubit resolution, significantly advancing the previous world record of 61 ion qubits. The research findings, detailed in the paper A site-resolved two-dimensional quantum simulator with hundreds of trapped ions, were recently published in Nature. One reviewer of Nature evaluated this accomplishment as a dramatic advance over 1D geometries where the largest ion number was 61. Another reviewer praised the research as the largest quantum simulation or computation performed to date in a trapped ion system; a milestone to be recognized.
Trapped ions are considered one of the most promising physical platforms for achieving large-scale quantum simulation and quantum computation. Numerous experiments have demonstrated high-precision coherent quantum control of ion qubits, while scalability still remains a primary challenge for this system.
Previously, researchers achieved quantum simulations with up to 61 ions in a one-dimensional crystal using a Paul trap. While a Penning trap allows for quantum simulations with around 200 ions, the lack of single-qubit resolution capability in qubit state detection makes it difficult to extract crucial information such as spatial correlations of the qubits, rendering it unsuitable for quantum computation or complicated quantum simulation tasks.
In the paper, Prof. Luming Duans team employed cryogenic monolithic ion trap technology and a two-dimensional ion crystal scheme to significantly expand the number of ion qubits and to enhance the stability of the ion crystal. They successfully achieved the stable trapping and sideband cooling of 512 ions and performed quantum state measurements with single-qubit resolution for 300 ions for the first time.
Researchers further utilized 300 ion qubits to realize the quantum simulation of a long-range transverse-field Ising model with tunable coupling. On the one hand, they prepared the ground state of the frustrated Ising model through quasi-adiabatic evolution and measured the spatial correlations of the qubits. They extracted information about the collective vibrational modes of the ions and compared them with theoretical results for validation. On the other hand, the researchers performed quantum simulation on the dynamics of the model and conducted quantum sampling from the final states.
Through coarse-grained analysis, they verified the non-trivial probability distributions of the obtained samples, which were challenging to directly sample using classical computers. This experimental system provides a powerful tool for further research into the important challenge of understanding many-body non-equilibrium quantum dynamics.
The corresponding author of the paper is IIIS Professor Luming Duan, and the first author is IIIS PhD student Shian Guo. Other co-authors include IIIS Assistant Professor Yukai Wu, IIIS PhD students Jing Ye, Lin Zhang, Ye Wang, Ruoyu Yan, Yujin Yi, Yulin Xu, Yunhan Hou, IIIS postdoc Yuzi Xu, Chi Zhang, IIIS Assistant Researcher Binxiang Qi and Associate Researcher Zichao Zhou, Li He, and HYQ Co. members Wenqian Lian, Rui Yao, Bowen Li, and Weixuan Guo.
This work was supported by the Innovation Program for Quantum Science and Technology (2021ZD0301601, 2021ZD0301605), Tsinghua University Initiative Scientific Research Program, the Ministry of Education of China, the New Cornerstone Investigator Program, Tsinghua University Dushi program, and the start-up fund.
Source: Li Han, Tsinghua University
Read more:
Researchers at Tsinghua University Achieve Largest-Scale Ion Trap Quantum Simulation - HPCwire
Glimpse of Next-Generation Internet – The Good Men Project
Posted: at 2:44 am
By Anne J. Manning, Harvard Gazette
Its one thing to dream up a next-generation quantum internet capable of sending highly complex, hacker-proof information around the world at ultra-fast speeds. Its quite another to physically show its possible.
Thats exactly what Harvard physicists have done, using existing Boston-area telecommunication fiber, in a demonstration of the worlds longest fiber distance between two quantum memory nodes. Think of it as a simple, closed internet carrying a signal encoded not by classical bits like the existing internet, but by perfectly secure, individual particles of light.
Thegroundbreaking work, published in Nature, was led by Mikhail Lukin, the Joshua and Beth Friedman University Professor in the Department of Physics, in collaboration with Harvard professorsMarko LonarandHongkun Park,who are all members of theHarvard Quantum Initiative.The Naturework was carried out with researchers atAmazon Web Services.
The Harvard team established the practical makings of the first quantum internet by entangling two quantum memory nodes separated by optical fiber link deployed over a roughly 22-mile loop through Cambridge, Somerville, Watertown, and Boston. The two nodes were located a floor apart in Harvards Laboratory for Integrated Science and Engineering.
Quantum memory, analogous to classical computer memory, is an important component of a quantum computing future because it allows for complex network operations and information storage and retrieval. While other quantum networks have been created in the past, the Harvard teams is the longest fiber network between devices that can store, process, and move information.
Each node is a very small quantum computer, made out of a sliver of diamond that has a defect in its atomic structure called a silicon-vacancy center. Inside the diamond, carved structures smaller than a hundredth the width of a human hair enhance the interaction between the silicon-vacancy center and light.
The silicon-vacancy center contains two qubits, or bits of quantum information: one in the form of an electron spin used for communication, and the other in a longer-lived nuclear spin used as a memory qubit to store entanglement, the quantum-mechanical property that allows information to be perfectly correlated across any distance.
(In classical computing, information is stored and transmitted as a series of discrete binary signals, say on/off, that form a kind of decision tree. Quantum computing is more fluid, as information can exist in stages between on and off, and is stored and transferred as shifting patterns of particle movement across two entangled points.)
Using silicon-vacancy centers as quantum memory devices for single photons has been a multiyear research program at Harvard. The technology solves a major problem in the theorized quantum internet: signal loss that cant be boosted in traditional ways.
A quantum network cannot use standard optical-fiber signal repeaters because simple copying of quantum information as discrete bits is impossible making the information secure, but also very hard to transport over long distances.
Silicon-vacancy-center-based network nodes can catch, store, and entangle bits of quantum information while correcting for signal loss. After cooling the nodes to close to absolute zero, light is sent through the first node and, by nature of the silicon vacancy centers atomic structure, becomes entangled with it, so able to carry the information.
Since the light is already entangled with the first node, it can transfer this entanglement to the second node, explained first author Can Knaut, a Kenneth C. Griffin Graduate School of Arts and Sciences student in Lukins lab. We call this photon-mediated entanglement.
Over the last several years, the researchers have leased optical fiber from a company in Boston to run their experiments, fitting their demonstration network on top of the existing fiber to indicate that creating a quantum internet with similar network lines would be possible.
Showing that quantum network nodes can be entangled in the real-world environment of a very busy urban area is an important step toward practical networking between quantum computers, Lukin said.
A two-node quantum network is only the beginning. The researchers are working diligently to extend the performance of their network by adding nodes and experimenting with more networking protocols.
The paper is titled Entanglement of Nanophotonic Quantum Memory Nodes in a Telecom Network. The work was supported by the AWS Center for Quantum Networkings research alliance with the Harvard Quantum Initiative, the National Science Foundation, the Center for Ultracold Atoms (an NSF Physics Frontiers Center), the Center for Quantum Networks (an NSF Engineering Research Center), the Air Force Office of Scientific Research, and other sources.
This story is reprinted with permission from The Harvard Gazette.
***
All Premium Members get to view The Good Men Project with NO ADS.
A $50 annual membership gives you an all access pass. You can be a part of every call, group, class and community. A $25 annual membership gives you access to one class, one Social Interest group and our online communities. A $12 annual membership gives you access to our Friday calls with the publisher, our online community.
Need more info? A complete list of benefits is here.
Photo credit: iStock
Go here to read the rest:
D-Wave Quantum Set to Join Russell 3000 Index – HPCwire
Posted: at 2:44 am
PALO ALTO, Calif., May 28, 2024 D-Wave Quantum Inc., a leader in quantum computing systems, software, and services and the worlds first commercial supplier of quantum computers, today announced it is set to join the broad-market Russell 3000 Index at the conclusion of the 2024 Russell US Indexes annual Reconstitution, effective at the open of US equity markets on Monday, July 1st, 2024, according to a preliminary list of additions posted on Friday, May 24th, 2024.
The annual Russell US Indexes Reconstitution captures the 4000 largest US stocks as of Tuesday, April 30th, 2024, ranking them by total market capitalization. Membership in the US all-cap Russell 3000 Index, which remains in place for one year, means automatic inclusion in the large-cap Russell 1000 Index or small-cap Russell 2000 Index as well as the appropriate growth and value style indexes. FTSE Russell, a prominent global index provider, determines membership for its Russell indexes primarily by objective, market-capitalization rankings, and style attributes.
Its an honor for D-Wave to join the Russell 3000 Index, an important benchmark for the US stock market, said Dr. Alan Baratz, CEO of D-Wave. This recognition reflects D-Waves leadership in ushering in the era of commercial quantum computing and will greatly increase visibility among the global investor community for the innovative quantum solutions were bringing to market.
Russell indexes are widely used by investment managers and institutional investors for index funds and as benchmarks for active investment strategies. According to the data as of the end of December 2023, about $10.5 trillion in assets are benchmarked against the Russell US indexes, which belong to FTSE Russell.
Russell indexesnow in their 40th yearcontinue to evolve to reflect the dynamic US economy. Annual rebalancing plays a vital role in establishing accurate benchmarks, ensuring they correctly mirror their designated market segments and remain unbiased in terms of size and style, said Fiona Bassett, CEO of FTSE Russell, an LSEG Business.
For more information on the Russell 3000 Index and the Russell indexes Reconstitution, go to the Russell Reconstitution section on the FTSE Russell website.
About D-Wave Quantum Inc.
D-Wave is a leader in the development and delivery of quantum computing systems, software, and services, and is the worlds first commercial supplier of quantum computersand the only company building both annealing quantum computers and gate-model quantum computers. Our mission is to unlock the power of quantum computing today to benefit business and society. We do this by delivering customer value with practical quantum applications for problems as diverse as logistics, artificial intelligence, materials sciences, drug discovery, scheduling, cybersecurity, fault detection, and financial modeling. D-Waves technology has been used by some of the worlds most advanced organizations including Mastercard, Deloitte, Davidson Technologies, ArcelorMittal, Siemens Healthineers, Unisys, NEC Corporation, Pattison Food Group Ltd., DENSO, Lockheed Martin, Forschungszentrum Jlich, University of Southern California, and Los Alamos National Laboratory.
Source: D-Wave
See the original post here:
How Quantum Computing Is Already Changing the World – InvestorPlace
Posted: at 2:44 am
[Editors note: How Quantum Computing Is Already Changing the World was previously published in December 2022. It has since been updated to include the most relevant information available.]
Im a history junkie. So, in this special Sunday issue of Hypergrowth Investing, let me share an interesting story that I bet a lot of you have never heard before.
And interestingly enough, it could be the key to helping you capitalize on the AI Revolution.
Back in October of 1927, the worlds leading scientists descended upon Brussels for the fifthSolvay Conference an exclusive, invite-only conference that is dedicated to discussing and solving the outstanding preeminent open problems in physics and chemistry.
In attendance were scientists that, today, we praise as the brightest minds in the history of mankind.
Albert Einstein was there; so was Erwin Schrodinger, who devised the famous Schrodingers cat experiment, and Werner Heisenberg, the man behind the world-changing Heisenberg uncertainty principle and Louis de Broglie, Max Born, Niels Bohr, Max Planck.
The list goes on and on. Of the 29 scientists who met in Brussels in October 1927, 17 of them went on to win a Nobel Prize.
These are the minds that collectively created the scientific foundation upon which the modern world is built.
And yet, when they all descended upon Brussels nearly 94 years ago, they got stumped by one concept. Its one that, for nearly a century, has remained the elusive key to unlocking humankinds full potential.
And now, for the first time ever, that concept is turning into a disruptive reality through breakthrough technology that will change the world as we know it.
So what exactly were Einstein, Schrodinger, Heisenberg and the rest of those Nobel laureates talking about in Brussels back in 1927?
Quantum mechanics.
Ill start by saying that the underlying physics of this breakthrough quantum mechanics is highly complex. It would likely require over 500 pages to fully understand.
But, alas, heres my best job at making a Cliffs Notes version in 500 words instead.
For centuries, scientists have developed, tested, and validated the laws of the physical world, known as classical mechanics. These scientifically explain how and why things work, where they come from, so on and so forth.
But in 1897, J.J. Thomson discovered the electron. And he unveiled a new, subatomic world of super-small things that didnt obey the laws of classical mechanics at all. Instead, they obeyed their own set of rules, which have since become known as quantum mechanics.
The rules of quantum mechanics differ from that of classical mechanics in two very weird, almost-magical ways.
First, in classical mechanics, objects are in one place at one time. You are either at the store or at home, not both.
But in quantum mechanics, subatomic particles can theoretically exist in multiple places at once before theyre observed. A single subatomic particle can exist in point A and point B at the same time until we observe it. And at that point, it only exists at either point A or point B.
So, the true location of a subatomic particle is some combination of all its possible positions.
This is calledquantumsuperposition.
Second, in classical mechanics, objects can only work with things that are also real. You cant use an imaginary friend to help move the couch. You need a real friend instead.
But in quantum mechanics, all of those probabilistic states of subatomic particles are not independent. Theyre entangled. That is, if we know something about the probabilistic positioning of one subatomic particle, then we know something about the probabilistic positioning of another subatomic particle meaning that these already super-complex particles can actually work together to create a super-complex ecosystem.
This is called quantum entanglement.
So in short, subatomic particles can theoretically have multiple probabilistic states at once, and all those probabilistic states can work together again, all at once to accomplish their task.
And that, in a nutshell, is the scientific breakthrough that stumped Einstein back in the early 1900s.
It goes against everything classical mechanics had taught us about the world. It goes against common sense. But its true. Its real. And now, for the first time ever, we are learninghow to harness this unique phenomenon to change everything about everything
This is why the U.S. government is pushing forward on developing a National Quantum Internet in southwest Chicago. It understands that this tech could be more revolutionary than the discovery of fire or the invention of the wheel.
I couldnt agree more.
Mark my words. Everything will change over the next few years because of quantum mechanics and some investors will make a lot of money.
The study of quantum theory has led to huge advancements over the past century. Thats especially true over the past decade. Scientists at leading tech companies have started to figure out how to harness the power of quantum mechanics to make a new generation of superquantum computers.And theyre infinitely faster and more powerful than even todays fastest supercomputers.
Again, the physics behind quantum computers is highly complex, but heres my shortened version
Todays computers are built on top of the laws of classical mechanics. That is, they store information on what are calledbits, which can store data binarily as either 1 or 0.
But what if you could turn those classical bits into quantum bits qubits to leverage superpositioning to be both 1 and 0 stores at once?
Further, what if you could leverage entanglement and have all multi-state qubits work together to solve computationally taxing problems?
Theoretically, youd create a machine with so much computational power that it would make todays most advanced supercomputers seem ancient.
Thats exactly whats happening today.
Googlehas built a quantum computer that is about158 million times fasterthan the worlds fastest supercomputer.
Thats not hyperbole. Thats a real number.
Imagine the possibilities if we could broadly create a new set of quantum computers that are 158 million times faster than even todays fastest computers
Imagine what AI could do.
Today, AI is already being used to discover and develop new drugs and automate manual labor tasks like cooking, cleaning, and packaging products. It is already being used to write legal briefs, craft ads, create movie scripts, and more.
And thats with AI built on top of classical computers.
But built upon quantum computers computer that are a 158 million times faster than classical computers AI will be able to donearly everything.
The economic opportunities at the convergence of artificial intelligence and quantum computing are truly endless.
Quantum computing is agame-changerthats flying under the radar.
Its not just another breakthrough its the seismic shift weve been waiting for, rivaling the impact of the internet and the discovery of fire itself.
We think the top stocks at the convergence of AI and QC havea realistic opportunity to soar 1,000%over the next few years alone.
So which stocks should you be buying right now? And which should you be selling?
Those are the billion-dollar questions we need to answer now if we want to make big money from top AI stocks in 2024.
Which is why I went public with all the details aboutArea 52
A stretch of land in the midwest where the U.S. government is covertly testing whats set to becomethe worlds first quadrillion-dollar technology.
In this brief presentation, I reveal the reason this technology is about to revolutionize everything
And how atiny company poised to bring this breakthrough tech mainstream could 79X your investmentin the days and months ahead
On the date of publication, Luke Lango did not have (either directly or indirectly) any positions in the securities mentioned in this article.
Excerpt from:
How Quantum Computing Is Already Changing the World - InvestorPlace
First-Of-Its-Kind Crystalline Metal Revealed In Quantum Breakthrough – Study Finds
Posted: February 1, 2024 at 2:45 am
HOUSTON In what scientists are calling a quantum coup, a team at Rice University has made a revolutionary discovery in the realm of quantum materials, unveiling a first-of-its-kind 3D crystalline metal. This new material has the remarkable ability to halt the movement of electrons, a phenomenon brought about by the unique combination of quantum correlations and the materials geometric structure.
The study not only details the discovery but also outlines the innovative design principles and experimental approaches that led to this significant finding. The material, a mix of copper, vanadium, and sulfur, forms a 3D pyrochlore lattice a structure made up of corner-sharing tetrahedra.
We look for materials where there are potentially new states of matter or new exotic features that havent been discovered, says study co-corresponding author Ming Yi, an experimental physicist at Rice University, in a university release.
Quantum materials, especially those facilitating strong electron interactions leading to quantum entanglement, are ripe for such discoveries. Entanglement, a quantum phenomenon, can result in electrons being locked in place due to their movements becoming highly correlated.
The study focuses on how these interactions and the materials structure can lead to electron localization, creating what are known as flat electronic bands. Until now, the occurrence of flat bands, which limit the energy range electrons can occupy, making them more likely to interact, was primarily associated with 2D materials. This research, however, provides the first empirical evidence of such an effect in a 3D material.
Using angle-resolved photoemission spectroscopy (ARPES), a technique that allows scientists to observe the arrangement and energies of electrons in materials, the team was able to detail the band structure of this novel material. They discovered a unique flat band at the Fermi level, the energy level at which electrons occupy states in a material.
It turns out that both types of physics are important in this material, explains Yi. The geometric frustration aspect was there, as theory had predicted. The pleasant surprise was that there were also correlation effects that produced the flat band at the Fermi level, where it can actively participate in determining the physical properties.
The discovery was made possible through the collaborative efforts of 10 Rice researchers across four laboratories, with significant contributions from the research groups of physicist Pengcheng Dai, who produced the samples, and Boris Yakobson, whose team performed calculations to quantify the effects of geometric frustration. The ARPES experiments were conducted at prestigious facilities, including the SLAC National Accelerator Laboratory and Brookhaven National Laboratory.
This materials unique properties stem from a mix of geometric frustration, where the arrangement of atoms prevents electrons from settling into a stable configuration, and strong electron interactions that magnify this effect.
Its the very first work to really show not only this cooperation between geometric- and interaction-driven frustration, but also the next stage, which is getting electrons to be in the same space at the top of the (energy) ladder, where theres a maximal chance of their reorganizing into interesting and potentially functional new phases, says study co-corresponding author Qimiao Si, a theoretical physicist at Rice.
The implications of this discovery are vast, opening new avenues for research into pyrochlore crystals and potentially leading to innovations in quantum computing, electronics, and materials science.
This is just the tip of the iceberg, concludes Yi. This is 3D, which is new, and just given how many surprising findings there have been on Kagome lattices, Im envisioning that there could be equally or maybe even more exciting discoveries to be made in the pyrochlore materials.
With the predictive methodology developed, researchers now have a new tool for identifying materials where similar phenomena could arise, promising further exciting discoveries in the quantum realm.
The study is published in the journal Nature Physics.
You might also be interested in:
Continued here:
First-Of-Its-Kind Crystalline Metal Revealed In Quantum Breakthrough - Study Finds
ConScience Launches Qubit-in-a-box 0 (QiB0) Device Containing 4 Qubits for Use in Research and Education – Quantum Computing Report
Posted: at 2:45 am
ConScience Launches Qubit-in-a-box 0 (QiB0) Device Containing 4 Qubits for Use in Research and Education Quantum Computing Report
Read the original post:
IBM Quantum System Two processor to be installed at Korean Quantum Computing site – DatacenterDynamics
Posted: at 2:45 am
IBM says it will install an IBM Quantum System Two processor at the Korean Quantum Computing (KQC) site by 2028.
The KQC site in Busan, South Korea has operated as an IBM Quantum Innovation Center since 2022. As a result of this expanded partnership, in addition to the installation of the new processor, KQC members will have access to IBMs full-stack solution for AI, including watsonx and Red Hat OpenShift AI.
In a statement, IBM said the collaboration would also include an investment in infrastructure to support the development of generative AI through the deployment of advanced GPUs and IBM's Artificial Intelligence Unit (AIU), managed by Red Hat OpenShift.
"KQC is providing versatile computing infrastructure in Korea through our collaboration with IBM, said Ji Hoon Kweon, Chairman of KQC. Our robust hardware computing resources and core software in quantum and AI are poised not only to meet the growing demand for high-performance computing, but also to catalyze industry utilization and ecosystem development.
He added: We are working to diligently enhance services and infrastructure through this collaboration as well as with our industry-specific partners.
The IBM Quantum System Two was unveiled at the companys quantum summit in December. The modular quantum computer a 22 ft wide, 12 ft high machine that is currently operational at IBMs New York lab is powered by three of the company's Heron chips and combines cryogenic infrastructure with modular qubit control electronics.
IBM Quantum Two will be used by the company to realize parallel circuit executions for quantum-centric supercomputing.
Go here to see the original: