Quantum Computers
Combinatorial optimization by simulating adiabatic bifurcations in nonlinear Hamiltonian systems  Science Magazine · 2 days
Combinatorial optimization problems are ubiquitous but difficult to solve. Hardware devices for these problems have recently been developed by various approaches, including quantum computers. Inspired by recently proposed... more
World-record quantum computing  SCIENCE DAILY · 4 days
A world-record result in reducing errors in semiconductor electron 'spin qubits', a type of building block for quantum computers, has been achieved. more
Improving quantum computers  PHYS.ORG · 4 days
For decades, experts have predicted that quantum computers will someday perform difficult tasks, such as simulating complex chemical systems, that can't be done by conventional computers. But so far, these machines haven't lived up to their potential because of error-prone... more
World-record quantum computing result for Sydney teams  PHYS.ORG · 4 days
A world-record result in reducing errors in semiconductor 'spin qubits', a type of building block for quantum computers, has been achieved using the theoretical work of quantum physicists at the University of Sydney Nano... more
Researchers use noise data to increase reliability of quantum computers  PHYS.ORG · 4 days
A new technique by researchers at Princeton University, University of Chicago and IBM significantly improves the reliability of quantum computers by harnessing data about the noisiness of operations... more
Scientists develop way to identify topological materials  PHYS.ORG · 4 days
In the decades since they were first theorized, scientists have suggested that the exotic properties of topological materials—that is, materials that maintain their electrical properties even in the face of radical temperature shifts or... more
Quantum simulation more stable than expected  PHYS.ORG · 1 week
A localization phenomenon boosts the accuracy of solving quantum many-body problems with quantum computers. These problems are otherwise challenging for conventional computers. This brings such digital quantum simulation within reach using quantum devices available today. more
Research provides speed boost to quantum computers  PHYS.ORG · 1 week
A new finding by researchers at the University of Chicago promises to improve the speed and reliability of current and next generation quantum computers by as much as ten times. By combining principles from... more
The golden path towards new two-dimensional semiconductors  PHYS.ORG · 1 week
Two-dimensional (2-D) semiconductors are promising for quantum computing and future electronics. Now, researchers can convert metallic gold into semiconductor and customize the material atom-by-atom on boron nitride nanotubes. more
New algorithm optimizes quantum computing problem-solving  SCIENCE DAILY · 1 week
Researchers have developed an algorithm that enhances the ability of a quantum computer to more efficiently find the best solution for complicated problems. more
The golden path towards new two-dimensional semiconductors (w/video)  nanowerk · 1 week
Two-dimensional (2D) semiconductors are promising for quantum computing and future electronics. Now, researchers can convert metallic gold into semiconductor and customize the material atom-by-atom on boron nitride nanotubes. more
At the 2-D scale, isotopic composition has unforeseen effects on light emission  PHYS.ORG · 2 weeks
Compared to bulk materials, atomically thin materials like transition metal dichalcogenides (TMDs) offer size and tunability advantages over traditional materials in developing miniature electronic... more
New algorithm optimizes quantum computing problem-solving  PHYS.ORG · 2 weeks
Tohoku University researchers have developed an algorithm that enhances the ability of a Canadian-designed quantum computer to more efficiently find the best solution for complicated problems, according to a study published in the journal Scientific Reports. more
Scientists build a machine to quantum superposition of possible futures  PHYS.ORG · 2 weeks
In the 2018 movie Avengers: Infinity War, a scene featured Dr. Strange looking into 14 million possible futures to search for a single timeline in which the heroes... more
Team harnesses spin of electrons to power tech devices  PHYS.ORG · 3 weeks
Building on the Air Force's need to develop tech devices that require minimal charging in the field, the University of Texas at San Antonio (UTSA) is using principles in quantum... more
Harnessing the spin of electrons to power tech devices  nanowerk · 3 weeks
Scientists are using principles in quantum science and engineering to build a graphene-based logic device. This new technology will improve the energy efficiency of battery-dependent devices from cell phones to... more
Putting a new spin on Majorana fermions  SCIENCE DAILY · 3 weeks
Scientists have proposed a new method for producing more robust Majorana fermions, a kind of quasiparticle that could act as stable bits of information in next-generation quantum computers. more
Experimental learning of quantum states  Science Magazine · 3 weeks
The number of parameters describing a quantum state is well known to grow exponentially with the number of particles. This scaling limits our ability to characterize and simulate the evolution of arbitrary states to systems, with no more... more
In the future, everyone might use quantum computers  PHYS.ORG · 4 weeks
Computers were once considered high-end technology, only accessible to scientists and trained professionals. But there was a seismic shift in the history of computing during the second half of the 1970s. It... more
Optical toric code platform sets new record  PHYS.ORG · 4 weeks
Anyons form the basis for topological quantum computation and error correction, where the topological aspect of anyonic braiding is one of the important features that gives rise to fault tolerance. More qubits to control... more
Extremely accurate measurements of atom states for quantum computing  nanowerk · 4 weeks
A new method allows the quantum state of atomic qubits to be measured with twenty times less error than was previously possible, without losing any atoms. more
Extremely accurate measurements of atom states for quantum computing  SCIENCE DAILY · 4 weeks
A new method allows the quantum state of atomic 'qubits'--the basic unit of information in quantum computers -- to be measured with twenty times less error than was previously possible,... more
Extremely accurate measurements of atom states for quantum computing  PHYS.ORG · 4 weeks
A new method allows the quantum state of atomic "qubits"—the basic unit of information in quantum computers—to be measured with twenty times less error than was previously possible, without losing... more
Electronic structure at coarse-grained resolutions from supervised machine learning  Science Magazine · 4 weeks
Computational studies aimed at understanding conformationally dependent electronic structure in soft materials require a combination of classical and quantum-mechanical simulations, for which the sampling of conformational space can be particularly... more
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Research provides speed boost to quantum computers
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Team harnesses spin of electrons to power tech devices
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