Quantum Mechanics
Long-distance quantum information exchange - success at the nanoscale  nanowerk · 11 hours
Researchers have realized the swap of electron spins between distant quantum dots. The discovery brings us a step closer to future applications of quantum information, as the tiny dots have... more
ATLAS observes light scattering off light  CERN · 18 hours
ATLAS observes light scattering off light achintya Mon, 03/18/2019 - 16:19 (Image: CERN) Light-by-light scattering is a very rare phenomenon in which two photons... more
Long-distance quantum information exchange -- success at the nanoscale  SCIENCE DAILY · 18 hours
Researchers have realized the swap of electron spins between distant quantum dots. The discovery is a step towards applications of quantum information, as the dots leave enough room for delicate... more
Turning an organic molecule into a coherent two-level quantum system  PHYS.ORG · 20 hours
Researchers at Max Planck Institute for the Science of Light and Friedrich Alexander University in Erlangen, Germany have recently demonstrated that a molecule can be turned into a... more
Physicists Reverse Time Using Quantum Computer  ASTRO WATCH · 2 days
Researchers from the Moscow Institute of Physics and Technology teamed up with colleagues from the U.S. and Switzerland and returned the state of a... more
Quantum sensing method measures minuscule magnetic fields  nanowerk · 3 days
Researchers find a new way to make nanoscale measurements of fields in more than one dimension. more
Researchers measure near-perfect performance in low-cost semiconductors  PHYS.ORG · 3 days
Tiny, easy-to-produce particles, called quantum dots, may soon take the place of more expensive single crystal semiconductors in advanced electronics found in solar panels, camera sensors and medical imaging tools. Although quantum dots have... more
Nanocrystal 'factory' could revolutionize quantum dot manufacturing  nanowerk · 4 days
Researchers have developed a microfluidic system for synthesizing perovskite quantum dots across the entire spectrum of visible light. The system drastically reduces manufacturing costs, can be tuned on demand to any color and allows... more
Researchers measure near-perfect performance in low-cost semiconductors  nanowerk · 4 days
Researchers redefine what it means for low-cost semiconductors, called quantum dots, to be near-perfect and find that quantum dots meet quality standards set by more expensive alternatives. more
Near-perfect performance in low-cost semiconductors  SCIENCE DAILY · 4 days
Researchers redefine what it means for low-cost semiconductors, called quantum dots, to be near-perfect and find that quantum dots meet quality standards set by more expensive alternatives. more
Wigner solid pinning modes tuned by fractional quantum Hall states of a nearby layer  Science Magazine · 4 days
We studied a bilayer system hosting two-dimensional electron systems (2DESs) in close proximity but isolated from one another by a... more
Nanocrystal 'factory' could revolutionize quantum dot manufacturing  PHYS.ORG · 4 days
North Carolina State University researchers have developed a microfluidic system for synthesizing perovskite quantum dots across the entire spectrum of visible light. The system drastically reduces manufacturing costs, can be tuned on demand to... more
Nanocrystal 'factory' could revolutionize quantum dot manufacturing  SCIENCE DAILY · 4 days
A new system for synthesizing quantum dots across the entire spectrum of visible light drastically reduces manufacturing costs, can be tuned on demand to any color and allows for real-time process monitoring to ensure... more
Quantum sensing method measures minuscule magnetic fields  SCIENCE DAILY · 4 days
A new technique uses quantum sensors to enable precise measurements of magnetic fields in different directions. more
Speeding up artificial intelligence  PHYS.ORG · 4 days
A group at Politecnico di Milano has developed an electronic circuit able to solve a system of linear equations in a single operation in the timescale of a few tens of nanoseconds. The performance of this new circuit is superior... more
Long-distance quantum information exchange—success at the nanoscale  PHYS.ORG · 4 days
At the Niels Bohr Institute, University of Copenhagen, researchers have realized the swap of electron spins between distant quantum dots. The discovery brings us a step closer to future applications of quantum information, as... more
Quantum sensing method measures minuscule magnetic fields  PHYS.ORG · 4 days
A new way of measuring atomic-scale magnetic fields with great precision, not only up and down but sideways as well, has been developed by researchers at MIT. The new tool could be useful in... more
Nature-inspired antibacterial metals  PHYS.ORG · 4 days
From aviation to medicine, various sectors are increasingly using materials that mimic the lotus plant, whose leaves have self-cleaning properties. Thanks to the bumpy surface structure covered with tube-shaped wax crystals, water falling on these leaves forms beads that roll... more
Exploring the behavior of a gas as it transitions between quantum and classical states  PHYS.ORG · 4 days
A team of researchers from the MIT-Harvard Center for Ultracold Atoms has developed a way to study and measure gases... more
Quantum sensing method measures minuscule magnetic fields  MIT · 4 days
MIT researchers find a new way to make nanoscale measurements of fields in more than one dimension. more
Reversing the flow of time on a quantum computer  SCIENCE DAILY · 4 days
Researchers have developed an algorithm to simulate returning a particle briefly to the past. The results suggest new paths for exploring the backward flow of time in quantum systems. They... more
Redefining near-unity luminescence in quantum dots with photothermal threshold quantum yield  Science Magazine · 5 days
A variety of optical applications rely on the absorption and reemission of light. The quantum yield of this process often plays an essential role. When the... more
Researchers put machine learning on path to quantum advantage  PHYS.ORG · 5 days
There are high hopes that quantum computing's tremendous processing power will someday unleash exponential advances in artificial intelligence. AI systems thrive when the machine learning algorithms used to train them... more
Researchers reverse the flow of time on IBM's quantum computer  SCIENCE DAILY · 5 days
Researchers have managed to return a computer briefly to the past. The results suggest new paths for exploring the backward flow of time in quantum systems. They also... more
Testing the symmetry of space-time by means of atomic clocks  SCIENCE DAILY · 6 days
According to Einstein the speed of light is always the same. But according to theoretical models of quantum gravitation, this uniformity of space-time does not apply to particles.... more
Testing the symmetry of space-time by means of atomic clocks  PHYS.ORG · 6 days
In his Special Theory of Relativity, Einstein formulated the hypothesis according to which the speed of light is always the same, no matter what the conditions are. It... more
Quantum-critical conductivity of the Dirac fluid in graphene  PHYS.ORG · 6 days
Graphene is expected to behave like a quantum-critical, relativistic plasma known as "Dirac fluid" near charge neutrality in which massless electrons and holes rapidly collide. In a recent study now published in... more
Can artificial intelligence solve the mysteries of quantum physics?  PHYS.ORG · 6 days
Under the direction of Mobileye founder Amnon Shashua, a research group at Hebrew University of Jerusalem's School of Engineering and Computer Science has proven that artificial intelligence (AI) can help... more
Physicists reverse time using quantum computer  PHYS.ORG · 6 days
Researchers from the Moscow Institute of Physics and Technology teamed up with colleagues from the U.S. and Switzerland and returned the state of a quantum computer a fraction of a second into the past. They also... more
Can artificial intelligence solve the mysteries of quantum physics?  SCIENCE DAILY · 7 days
A new study has demonstrated mathematically that algorithms based on deep neural networks can be applied to better understand the world of quantum physics, as well. more
Quantum physicists succeed in controlling energy losses and shifts  SCIENCE DAILY · 1 week
In a new study, scientists demonstrate that they can increase the dissipation rate, on demand, by a factor of thousand in a high-quality superconducting resonator -- just like the ones... more
Opening the path to scaling silicon quantum computers  PHYS.ORG · 1 week
Research collaboration between UNSW and the University of Sydney has overcome a fundamental hurdle to building quantum computers in silicon, opening the way to further develop the machines at scale. more
Quantum physicists succeed in controlling energy losses and shifts  PHYS.ORG · 1 week
Quantum computers need to preserve quantum information for a long time to be able to crack important problems faster than a normal computer. Energy losses take the state of the... more
Using quantum measurements to fuel a cooling engine  PHYS.ORG · 1 week
Researchers at the University of Florence and Istituto dei Sistemi Complessi, in Italy, have recently proved that the invasiveness of quantum measurements might not always be detrimental. In a study published in... more
Listening to quantum radio  nanowerk · 1 week
Researchers have created a quantum circuit that enables them to listen to the weakest radio signal allowed by quantum mechanics. This new quantum circuit opens the door to possible future applications in areas such as radio astronomy and medicine (MRI). more
Listening to quantum radio  SCIENCE DAILY · 2 weeks
Researchers have created a quantum circuit that enables them to listen to the weakest radio signal allowed by quantum mechanics. This new quantum circuit opens the door to possible future applications in areas such as radio astronomy and medicine (MRI).... more
Listening to quantum radio  PHYS.ORG · 2 weeks
Researchers at Delft University of Technology have created a quantum circuit to listen to the weakest radio signal allowed by quantum mechanics. This new quantum circuit opens the door to possible future applications in areas such as radio astronomy and... more
Shooting movies in atoms  PHYS.ORG · 2 weeks
Researchers of the Laboratory for Attosecond Physics at LMU and the Max Planck Institute for Quantum Optics have developed a microscope that tracks the motion of electrons. more
When semiconductors stick together, materials go quantum  nanowerk · 2 weeks
A new study reveals how aligned layers of atomically thin semiconductors can yield an exotic new quantum material. more
Breakthrough could enable cheaper infrared cameras  SCIENCE DAILY · 2 weeks
A breakthrough in quantum dot technology may one day lead to much more cost-effective infrared cameras -- which in turn could enable infrared cameras for common consumer electronics like phones, as well as sensors to help... more
Observation and stabilization of photonic Fock states in a hot radio-frequency resonator  Science Magazine · 2 weeks
Detecting weak radio-frequency electromagnetic fields plays a crucial role in a wide range of fields, from radio astronomy to nuclear magnetic resonance imaging. In... more
When semiconductors stick together, materials go quantum  SCIENCE DAILY · 2 weeks
Researchers have developed a simple method that could turn ordinary semiconducting materials into quantum machines -- superthin devices marked by extraordinary electronic behavior that could help to revolutionize a number of industries aiming for... more
When semiconductors stick together, materials go quantum  PHYS.ORG · 2 weeks
A team of researchers led by the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) has developed a simple method that could turn ordinary semiconducting materials into quantum machines—superthin devices marked by extraordinary... more
Graphene quantum dots for single electron transistors  PHYS.ORG · 2 weeks
Scientists from the Higher School of Economics, Manchester University, the Ulsan National Institute of Science & Technology and the Korea Institute of Science and Technology have developed a novel technology that combines the fabrication... more
Graphene quantum dots for single electron transistors  nanowerk · 2 weeks
Scientists have developed a novel technology, which combines the fabrication procedures of planar and vertical heterostructures in order to assemble graphene-based single-electron transistors of excellent quality. more
Squeezed quantum dots produce more stable light  nanowerk · 2 weeks
Exploiting a strain-engineering approach could provide nanoscale light sources with a nonfluctuating emission wavelength for use in sensors, quantum communication, and imaging. more
Sensing disturbances in the force  nanowerk · 2 weeks
Researchers embark on project to build atom-defect hybrid quantum sensors. more
Can entangled qubits be used to probe black holes?  PHYS.ORG · 2 weeks
Physicists have used a seven-qubit quantum computer to simulate the scrambling of information inside a black hole, heralding a future in which entangled quantum bits might be used to probe... more
New quantum sensor promises better imaging and cancer monitoring  NEWS MEDICAL · 2 weeks
Researchers at the University of Waterloo’s Institute for Quantum Computing (IQC) have developed a new quantum sensor that could mean a significant advancement in 3D imaging and monitoring for cancer... more
New hurdle cleared in race toward quantum computing  SCIENCE DAILY · 2 weeks
Researchers have created a new device that allows them to probe the interference of quasiparticles, potentially paving the way for the development of topological qubits. more
Newly developed quantum sensor could advance cancer treatments  NEWS MEDICAL · 2 weeks
A new quantum sensor developed by researchers at the University of Waterloo's Institute for Quantum Computinghas proven it can outperform existing technologies and promises significant advancements in long-range 3D imaging and monitoring... more
New quantum sensor could improve cancer treatment  nanowerk · 2 weeks
A new quantum sensor has proven it can outperform existing technologies and promises significant advancements in long-range 3D imaging and monitoring the success of cancer treatments. more
The force is with us, always? Tuning quantum vacuum forces from attractive to repulsive  nanowerk · 2 weeks
A physicist has shown for the first time that the Casimir force can be reversed and made repulsive, tunable or... more
The force is with us, always? Tuning quantum vacuum forces from attractive to repulsive  SCIENCE DAILY · 2 weeks
Scientists can put two uncharged metal plates close together in a vacuum, and 'voila!' -- they will attract each other.... more
The force is with us, always? Tuning quantum vacuum forces from attractive to repulsive  PHYS.ORG · 2 weeks
The force is strong not only in Star Wars lore but also as a fundamental property in physics. For example,... more
Ultracold atoms could provide 2-D window to exotic 1-D physics  PHYS.ORG · 2 weeks
Rice University physicists Matthew Foster and Seth Davis want to view a vexing quantum puzzle from an entirely new perspective. They just need the right vantage point and... more
Transforming magnetic storage might stem from the vision of quantum  PHYS.ORG · 2 weeks
Magnetic materials have a worldwide market share of some $50 billion per year. A new frontier in the study of these materials, femtomagnetism, could lead to ultrafast magnetic... more
New quantum sensor could improve cancer treatment  SCIENCE DAILY · 2 weeks
A new quantum sensor has proven it can outperform existing technologies and promises significant advancements in long-range 3D imaging and monitoring the success of cancer treatments. more
New quantum sensor could improve cancer treatment  PHYS.ORG · 2 weeks
A new quantum sensor developed by researchers at the University of Waterloo's Institute for Quantum Computing (IQC) has proven it can outperform existing technologies and promises significant advancements in long-range 3-D imaging and monitoring... more
Quasiparticles experimentally shown to interfere for first time  PHYS.ORG · 2 weeks
Qubits, the units used to encode information in quantum computing, are not all created equal. Some researchers believe that topological qubits, which are tougher and less susceptible to environmental noise than other... more
Hidden ancient neutrinos may shape the patterns of galaxies  SCIENCE-NEWS · 2 weeks
The gravitational pull of subatomic particles born in the universe’s first second seem to influence how galaxies cluster into rings. more
New simulation methods to visualise quantum effects in superfluid fermions  PHYS.ORG · 2 weeks
What exactly happens inside neutron stars – the final stage of a giant star – is subject to speculation. In terms of physics, the interiors of neutron stars,... more
Experimentally reducing the quantum measurement back action in work distributions by a collective measurement  Science Magazine · 3 weeks
In quantum thermodynamics, the standard approach to estimating work fluctuations in unitary processes is based on two projective measurements, one... more
Securing the “internet of things” in the quantum age  MIT · 3 weeks
Efficient chip enables low-power devices to run today’s toughest quantum encryption schemes. more
Graphite offers up new quantum surprise  SCIENCE DAILY · 3 weeks
Researchers have discovered the quantum Hall effect in bulk graphite -- a layered crystal consisting of stacked graphene layers. more
Exchanging information securely using quantum communication in future fiber-optic networks  SCIENCE DAILY · 3 weeks
Searching for better security during data transmission, governments and other organizations around the world have been investing in and developing technologies related to quantum communication and related encryption... more
Moving closer to practical photonic quantum computing  SCIENCE DAILY · 3 weeks
For the first time, researchers have demonstrated a way to map and measure large-scale photonic quantum correlation with single-photon sensitivity. The ability to measure thousands of instances of quantum correlation is critical for making... more
Quantum-critical conductivity of the Dirac fluid in graphene  Science Magazine · 3 weeks
Graphene near charge neutrality is expected to behave like a quantum-critical, relativistic plasma—the "Dirac fluid"—in which massless electrons and holes rapidly collide at a rapid rate. We measure the frequency-dependent optical conductivity... more
Exchanging information securely using quantum communication in future fiber-optic networks  PHYS.ORG · 3 weeks
Searching for better security during data transmission, governments and other organizations around the world have been investing in and developing technologies related to quantum communication and related encryption... more
Code used to reduce quantum error in logic gates for first time  SCIENCE DAILY · 3 weeks
Scientists have for the first time demonstrated improvement in quantum computers by using codes designed to detect and discard errors in the logic gates... more
Researchers move closer to practical photonic quantum computing  PHYS.ORG · 3 weeks
For the first time, researchers have demonstrated a way to map and measure large-scale photonic quantum correlation with single-photon sensitivity. The ability to measure thousands of instances of quantum correlation is critical... more
physicists use code to reduce quantum error in logic gates  PHYS.ORG · 3 weeks
Scientists at the University of Sydney have for the first time demonstrated improvement in quantum computers by using codes designed to detect and discard errors in the logic... more
Cooperativity and entanglement pave way for ground-state cooling using nitrogen vacancy centers  PHYS.ORG · 3 weeks
Center for Nanoscale Materials researchers present a quantum model for achieving ground-state cooling in low frequency mechanical resonators and show how cooperativity and entanglement... more
Immunizing quantum computers against errors  PHYS.ORG · 3 weeks
Building a quantum computer requires reckoning with errors—in more than one sense. Quantum bits, or "qubits," which can take on the logical values zero and one simultaneously, and thus carry out calculations faster, are extremely susceptible to perturbations.... more
'Universal entangler' for new quantum tech  SCIENCE DAILY · 3 weeks
One of the key concepts in quantum physics is entanglement, in which two or more quantum systems become so inextricably linked that their collective state can't be determined by observing each element individually. Now researchers have... more
Researchers create a 'universal entangler' for new quantum tech  PHYS.ORG · 3 weeks
One of the key concepts in quantum physics is entanglement, in which two or more quantum systems become so inextricably linked that their collective state can't be determined by observing... more
Snapshot technique helps scientists 'hear' the quantum world  PHYS.ORG · 3 weeks
When scientists examine very small and swift objects they see the laws of physics working wildly differently than in the everyday "normal-sized" world. more
Physicists Create Coldest Quantum Gas of Molecules  SCI-NEWS.COM · 3 weeks
Physicists at JILA, a joint institute of the National Institute of Standards and Technology (NIST) and the University of Colorado Boulder, have... more
'Immunizing' quantum bits so that they can grow up  nanowerk · 3 weeks
New material enhances supercurrent in topological-insulator nanoribbon Josephson junctions. more
'Immunizing' quantum bits so that they can grow up  SCIENCE DAILY · 3 weeks
Qubits need a better immune system before they can grow up. A new material, engineered into a thin strip, is one step closer to 'immunizing' qubits against noise, such as... more
'Immunizing' quantum bits so that they can grow up  PHYS.ORG · 3 weeks
Quantum computers will process significantly more information at once compared to today's computers. But the building blocks that contain this information – quantum bits, or "qubits" – are way too... more
New material holds promise for more secure computing  PHYS.ORG · 3 weeks
As computers advance, encryption methods currently used to keep everything from financial transactions to military secrets secure might soon be useless, technology experts warn. Reporting today in the journal Nature, a team... more
Experts move one step closer to demystifying the quantum world  PHYS.ORG · 3 weeks
The quantum world is notoriously complex, its multiple layers and miniscule components eluding standard analytical approaches. more
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Quantum physicists succeed in controlling energy losses and shifts
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New material holds promise for more secure computing
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When sand-slithering snakes behave like light waves
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