Researchers have achieved a major breakthrough in shielding the quantum properties of single atoms on a surface. The scientists used the magnetism of single atoms, known as spin, as a basic building block for quantum information processing. The researchers could show that by packing two atoms closely together they could protect their fragile quantum properties much better than for just one atom.... SCIENCE DAILY · 5 months
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
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
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
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
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
Coincidence helps with quantum measurements  SCIENCE DAILY · 2 days
Through randomly selected measurements, physicists can determine the quantum entanglement of many-particle systems. With the newly developed method, quantum simulations can be extended to a larger number of quantum particles. Researchers now report on the first successful demonstration... more
Scientists set record for light-matter interaction  PHYS.ORG · 3 weeks
An international team of physicists from the Mandelstam Institute for Theoretical Physics at Wits University and the Institut Néel in Grenoble, France, has created a tiny superconducting circuit that mimics the quantum mechanical process in which... more
Quantum localization bounds Trotter errors in digital quantum simulation  Science Magazine · 1 week
A fundamental challenge in digital quantum simulation (DQS) is the control of an inherent error, which appears when discretizing the time evolution of a quantum many-body system as a sequence... more
Researchers measure quantum power increase in quantum boost engine for the first time  PHYS.ORG · 4 weeks
An international team of researchers has measured a quantum power increase in a quantum boost engine for the first time. In their... more
New method enables quantum simulations on larger systems  PHYS.ORG · 3 days
Through randomly selected measurements, Austrian physicists can now determine the quantum entanglement of many-particle systems. With the newly developed method, quantum simulations can be extended to a larger number of quantum particles.... 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
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
Quantum magnetometers for industrial applications  PHYS.ORG · 3 weeks
On April 1 2019, the Fraunhofer-Gesellschaft launches the lighthouse project "Quantum Magnetometry" (QMag): Freiburg's Fraunhofer institutes IAF, IPM and IWM want to transfer quantum magentometry from the field of university research to industrial applications. In close cooperation with... more
Evidence of pair-density wave (PDW) in spin-valley locked systems  PHYS.ORG · 2 weeks
The isolation of graphene more than a decade ago transformed the landscape of condensed-matter physics, as the single-atom-thick, two-dimensional material exhibited high crystal and electronic quality to represent a conceptually... 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
Relativistic independence bounds nonlocality  Science Magazine · 1 week
If nature allowed nonlocal correlations other than those predicted by quantum mechanics, would that contradict some physical principle? Various approaches have been put forward in the past two decades in an attempt to single out quantum nonlocality. However, none of... more
Truly Spooky: How Ghostly Quantum Particles Fly Through Barriers Almost Instantly  SPACE.COM · 4 weeks
Scientists recently unraveled a physics puzzle that has stymied experts since the dawn of quantum mechanics. more
Research team expands quantum network with successful long-distance entanglement experiment  PHYS.ORG · 2 weeks
Scientists from the U.S. Department of Energy's Brookhaven National Laboratory, Stony Brook University, and DOE's Energy Sciences Network (ESnet) are collaborating on an experiment that puts U.S. quantum... more
Quantum optical cooling of nanoparticles  PHYS.ORG · 3 weeks
When a particle is completely isolated from its environment, the laws of quantum physics start to play a crucial role. One important requirement to see quantum effects is to remove all thermal energy from the particle motion, i.e.... more
Listening to the quantum vacuum  nanowerk · 4 weeks
Researchers present the first broadband, off-resonance measurement of quantum radiation pressure noise in the audio band, at frequencies relevant to gravitational wave detectors. 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
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
Observation of new plasmons in the fractional quantum Hall effect: Interplay of topological and nematic orders  Science Magazine · 4 weeks
Collective modes of exotic quantum fluids reveal underlying physical mechanisms responsible for emergent quantum states. We... more
Quantum physics and origami for the ultimate get-well card  nanowerk · 3 weeks
Scientists have combined the simplicity of paper with the complexity of quantum physics for point-of-care testing in low-resource environments. 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
European Quantum Communications Network Takes Shape  ASTRO WATCH · 1 week
Today’s interconnected world is ever more vulnerable to cyberattacks, emphasizing the importance of secure encryption to protect Europe’s critical infrastructure and communications. An agreement... more
Probing Renyi entanglement entropy via randomized measurements  Science Magazine · 3 days
Entanglement is a key feature of many-body quantum systems. Measuring the entropy of different partitions of a quantum system provides a way to probe its entanglement structure. Here, we present and experimentally demonstrate a... 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
A new quantum engine packs more power than its standard counterparts  SCIENCE-NEWS · 3 weeks
A new type of tiny machine harnesses quantum physics to produce more power than a normal engine, under certain conditions. more
Research provides speed boost to quantum computers
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Team harnesses spin of electrons to power tech devices
PHYS.ORG
Scientists capture live, atomic-level detail of nanoparticle formation
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Listening to the quantum vacuum: Physicists measure quantum 'back action' in the audio band at room temperature
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