Quantum Mechanics
Radical techniques in electron microscopy could revolutionise studies in physics, biochemistry, materials and more.
Researchers developed a versatile remote gaming interface that allowed experts as well as hundreds of citizen scientists all over the world through multiplayer collaboration and in real time to optimize a quantum gas experiment in a lab. Both teams quickly...
Researchers in a lab at Aarhus University have developed a versatile remote gaming interface that allowed external experts as well as hundreds of citizen scientists all over the world to optimize a quantum gas experiment through multiplayer collaboration and in...
A paper published in 2017 appeared to show a limited quantum effect in bacteria. Now scientists argue that something much weirder happened.
Positrons are short-lived subatomic particle with the same mass as electrons and a positive charge. They are used in medicine, e.g. in positron emission tomography (PET), a diagnostic imaging method for metabolic disorders. Positrons also exist...
Sealed in a vault beneath a duke's former pleasure palace among the sycamore-streaked forests west of Paris sits an object the size of an apple that determines the weight of...
The tiny, repeating structure could reveal weird behavior of electrons in fractional dimensions.
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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...
Quantum spin liquids (QSLs) are exotic phases of matter that host fractionalized excitations. It is difficult for local probes to characterize QSL, whereas quantum...
Manipulation of spin states at the single-atom scale underlies spin-based quantum information processing and spintronic devices. These applications require protection of the spin states against quantum decoherence due...
The impact of nonmagnetic and magnetic impurities on topological insulators is a central focus concerning their fundamental physics and possible spintronics and quantum computing applications. Combining scanning tunneling spectroscopy with...
Realization of the quantum spin Hall effect in graphene devices has remained an outstanding challenge dating back to the inception of the...
Researchers at the Center for Quantum Nanoscience (QNS) within the Institute for Basic Science (IBS) 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...
VIDEO The UK's first quantum accelerometer for navigation has been demonstrated by a team from Imperial College London and M Squared.
Quantum Hall ferromagnets are among the purest magnets in the world—and one of the most difficult to study. These 2-D magnets can only be made in temperatures less than a degree above...
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A team of researchers from the Dutch institute AMOLF, Western University (Canada), and the University of Texas (United States of America) recently demonstrated the use of algorithmic design to create a new type of nanophotonic structure. This is...
Quantum simulations reveal that graphene undergoes an unexpected and potentially useful change in state when stretched.
Excited photo-emitters can cooperate and radiate simultaneously, a phenomenon called superfluorescence. Researchers have recently been able to create this effect with long-range ordered nanocrystal superlattices. This discovery could enable future developments in LED lighting, quantum sensing, quantum communication...
Photon-mediated interactions between quantum systems are essential for realizing quantum networks and scalable quantum information processing. We demonstrate such interactions between pairs of silicon-vacancy (SiV) color centers coupled to a...
Layered transition metal dichalcogenides or TMDCs -- materials composed of metal nanolayers sandwiched between two other layers of chalcogens -- have become extremely attractive to the...
GrapheneQuantum Mechanics more... SCIENCE DAILY 1 week
Remarkable rules have been detected in the apparent chaos of disequilibrium processes. Different systems behave identically in many ways, if they belong to the same 'universality class'. This...
Remarkable rules have been detected in the apparent chaos of disequilibrium processes. Different systems behave identically in many ways, if they belong to the same "universality class." This means that experiments can be carried out with quantum systems...
Excited photo-emitters can cooperate and radiate simultaneously, a phenomenon called superfluorescence. Researchers from Empa and ETH Zurich, together with colleagues from IBM Research Zurich, have recently been able to create this effect...
Sandwich structure of nanocrystals as quantum light source.
Quantum Mechanics more... nanowerk 1 week
One might think that the optical tweezer – a focused laser beam that can trap small particles – is old hat by now. After...
In recent years, black-phosphorus-analogue (BPA) two-dimensional materials have been demonstrated to exhibit promising optoelectronic performances and distinguished ambient stabilities, holding great promise in practical applications. In new work, researchers demonstrated that ultra-small 2D beta-lead oxide quantum dots showed fast carrier...
Quantum Mechanics more... nanowerk 1 week
Generating complex multi-principle element transition metal dichalcogenides (TMDCs) is essential for the future development of new generations of quantum, electronic, and energy conversion materials is difficult.
Layered transition metal dichalcogenides or TMDCs—materials composed of metal nanolayers sandwiched between two other layers of chalcogens— have become extremely attractive to the research community due...
Quantum systems can be manipulated with extremely high precision, but not perfectly. Researchers in the Department of Physics at ETH Zurich have now demonstrated how to monitor and correct errors that occur during such...
Quantum Mechanics more... PHYS.ORG 1 week
Researchers have demonstrated a procedure for making precise measurements of speed, acceleration, material properties and even gravity waves possible, approaching the ultimate sensitivity allowed by laws of quantum physics.
Quantum systems can be manipulated with extremely high, but not with perfect precision. Researchers have now demonstrated how errors that occur during such operations can be monitored and corrected on the fly.
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Physicists have developed a new way to build quantum memories, a method for storing delicate quantum information encoded into pulses of light.
Quantum Mechanics more... SCIENCE DAILY 1 week
New materials are being synthesized by twisting and stacking atomically thin layers. To bring it all under one roof, physicists propose this field of research be...
Quantum Mechanics more... SCIENCE DAILY 1 week
VIDEO When two atomically thin two-dimensional layers are stacked on top of each other and one layer is made to rotate against the second layer, they begin...
Physicists at the University of Alberta in Canada have developed a new way to build quantum memories, a method for storing delicate quantum information encoded into pulses of light.
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Griffith University researchers have demonstrated a procedure for making precise measurements of speed, acceleration, material properties and even gravity waves possible, approaching the ultimate sensitivity allowed by laws of quantum physics.
Quantum computers are being developed by teams working not only at universities but also at Google, IBM, Microsoft and D-Wave, a start-up company. And things are evolving quickly, says Nicolas Sangouard, SNSF Professor at the University...
The experimental mastery of complex quantum systems is required for future technologies like quantum computers and quantum encryption. Scientists from the University of Vienna and the Austrian Academy of Sciences have broken new ground....
geometry of spacetime as a quantum information processing device
In the race for building a scalable quantum computer, devices using photons as carrier of quantum information are...
Using solid state nuclear magnetic resonance (ssNMR) techniques, scientists have discovered a new quantum criticality in a superconducting material, leading to a greater understanding of the link between magnetism and unconventional superconductivity.
Quantum Mechanics more... SCIENCE DAILY 2 weeks
Mysterious quantum stars that act like single, monster atoms could form surprisingly quickly.
No definitive evidence of spacetime supersymmetry (SUSY) that transmutes fermions into bosons and vice versa has been revealed in nature so far. Moreover, the question of whether spacetime SUSY in...
Quantum oscillations are usually the manifestation of the underlying physical nature in condensed matter systems. Here, we report a new type of log-periodic quantum oscillations in ultraquantum three-dimensional topological materials. Beyond the...
Quantum Mechanics more... Science Magazine 2 weeks
Using solid state nuclear magnetic resonance (ssNMR) techniques, scientists at the U.S. Department of Energy's Ames Laboratory discovered a new quantum criticality in a superconducting material, leading to a greater understanding of the link between magnetism...
Solving a complex problem quickly requires careful tradeoffs – and simulating the behavior of materials is no exception. To get answers that predict molecular workings feasibly, scientists must swap in mathematical approximations that speed computation at accuracy's expense.
As quantum technology continues to come into its own, investment is happening on a global scale. Soon, we could see improvements in machine learning models, financial risk assessment, efficiency of...
Quantum Mechanics more... PHYS.ORG 2 weeks
trapping atoms not space ships with tractor beams
University of Adelaide researchers have delved into the realm of Star Wars and created a powerful tractor beam – or...
The robust generation and propagation of multiphoton quantum states are crucial for applications in quantum information, computing, and communications. Although photons are intrinsically well isolated from the thermal environment, scaling to large quantum optical devices is still limited...
Scientists in Australia have for the first time demonstrated the protection of correlated states between paired photons—packets of light energy—using the intriguing physical concept...
A new advance using microwave technology promises to ensure quantum computers can operate under realistic conditions, bringing us closer to the realization of commercial quantum computing.
In superconducting materials, electrons pair up and condense into a quantum state that carries electrical current with no loss. This usually happens at very...
Researchers at the Schliesser Lab at the Niels Bohr Institute, University of Copenhagen, have demonstrated a new way to address a central problem in quantum physics: at the quantum scale, any measurement disturbs the...
Quantum Mechanics more... PHYS.ORG 2 weeks
VIDEO A team of scientists, led by Professor Winfried Hensinger at the University of Sussex, have made a major breakthrough concerning one of the biggest problems facing quantum computing: how to...
JILA researchers have, for the first time, isolated groups of a few atoms and precisely measured their multi-particle interactions within an atomic clock. The advance will help scientists control interacting...
Quantum Mechanics more... PHYS.ORG 2 weeks
Mysterious quantum stars that act like single, monster atoms could form surprisingly quickly.
Quantum MechanicsUniverse more... LIVE SCIENCE 2 weeks
Researchers have just found a way to show that quantum computing beats classical computing by giving a leading practical proposal known as random circuit sampling (RCS)...
Researchers have developed a scalable method for creating large numbers of quantum light sources on a chip with unprecedented precision that not only could pave the way for the development of unbreakable cryptographic systems but also...
Noise is a fundamental feature of any electrical measurement that calculates random and correlated signal fluctuations. Although noise is typically undesirable, noise can be used to probe quantum effects and...
Quantum Mechanics more... PHYS.ORG 2 weeks
As multiple research groups around the world race to build a scalable quantum computer, questions remain about how the achievement of quantum supremacy will be verified.
Quantum computers that are capable of solving complex problems, like drug design or machine learning, will require millions of quantum bits—or qubits—connected in an integrated way and designed to correct errors that inevitably occur...
A team of researchers from the University of Illinois at Urbana-Champaign and Mayo Clinic have engineered a new type of molecular probe that can measure and count RNA in cells and tissue without organic...
AnimalsQuantum Mechanics more... NEWS MEDICAL 2 weeks
A team of researchers from the University of Illinois at Urbana-Champaign and Mayo Clinic have engineered a new type of molecular probe that can measure and count RNA in cells and tissue without organic dyes. The...
Household lightbulbs give off a chaotic torrent of energy, as trillions of miniscule light particles—called photons—reflect and scatter in all directions. Quantum light sources, on the other hand, are like light guns...
Magnetic Resonance Imaging methods have been used widely in past decades as a safe, non-invasive and non-radioactive method of diagnosing CVDs.
RadioactiveQuantum Mechanics more... NEWS MEDICAL 2 weeks
Funding could help quantum technology gain commercial footholds in Europe
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A theoretical concept to realize quantum information processing has been developed by Professor Guido Burkard and his team of physicists at the University of Konstanz. The researchers have found ways to shield electric and magnetic noise for a short time....
The use of organic light-emitting diodes (OLEDs) has extended to various applications, but their efficiency is still lagging behind inorganic light-emitting diodes. In this research, a KAIST team...
Quantum Mechanics more... PHYS.ORG 3 weeks
Researchers from the Moscow Institute of Physics and Technology (MIPT), Aalto University in Finland, and ETH Zurich have demonstrated a prototype device that uses quantum effects and machine...
Quantum Mechanics more... PHYS.ORG 3 weeks
Turning on superconductivity in a topologically non-trivial insulator may provide a route to search for non-Abelian topological states. However, existing demonstrations of superconductor-insulator switches have involved only topologically trivial systems....
Quantum Mechanics more... Science Magazine 3 weeks
Tailored quantum states of light can be created via a transfer of collective quantum states of matter to light modes. Such collective quantum states emerge in interacting many-body...
Quantum Mechanics more... Science Magazine 3 weeks
Researchers present a quantum error correction system that is capable of learning thanks to artificial intelligence.
Quantum computers could solve complex tasks that are beyond the capabilities of conventional computers. However, the quantum states are extremely sensitive to constant interference from their...
As the number of hacks and security breaches rapidly climbs, scientists say there may be a way to make a truly unhackable network by using the laws of quantum physics.
VIDEO How long does it take to roll a twelve-hundred-ton detector one hundred feet? In late August, it took 10 hours for the STAR detector to roll from its regular spot in the interaction region of the Relativistic Heavy...
Let's suppose you were allowed to blindfold German soccer star Timo Werner and turn him on his own axis several times. Then you ask him to take a shot blind. It would be extremely unlikely that he would...
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A powerful fast-pulsing laser can bust through clouds to make quantum communication via satellite easier.
Researchers developed a mathematical model describing motion of dark matter particles inside the smallest galaxy halos. They observed that over time, dark matter may form spherical droplets of...
russian physicists observe dark matter forming droplets
Researchers developed a mathematical model describing motion of dark matter particles inside the smallest galaxy halos. They observed that over time, the...
Monika Aidelsburger uses a special type of optical lattice to simulate quantum many-body phenomena that are otherwise inaccessible to experimental exploration. She has now been awarded an ERC Starting Grant to pursue this work.
Quantum Mechanics more... PHYS.ORG 3 weeks
new study sets a size limit for undiscovered subatomic particles
A new study suggests that many theorized heavy particles, if they exist at all, do not...
Exciton-polaritons are mutually interacting quantum hybridizations of confined photons and electronic excitations. Here, we demonstrate a system of optically guided, electrically polarized exciton-polaritons ("dipolaritons") that displays up to 200-fold enhancement of the polariton-polariton interaction strength compared to unpolarized polaritons. The...
Quantum Mechanics more... Science Magazine 4 weeks
Geometric phases, generated by cyclic evolutions of quantum systems, offer an inspiring playground for advancing fundamental physics and technologies alike. The exotic statistics of anyons realized in physical systems can be interpreted as a topological version...
Quantum MechanicsEvolution more... Science Magazine 4 weeks
Quantum teleportation, which is the transfer of an unknown quantum state from one station to another over a certain distance with the help of nonlocal entanglement shared by a sender and a receiver, has been widely...
Researchers from the University of Luxembourg, Technische Universität Berlin, and the Fritz Haber Institute of the Max Planck Society have combined machine learning and quantum mechanics to predict the dynamics and atomic interactions in...
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Quantum computers promise to revolutionize the future of computing. Scientists have now demonstrated for the first time that quantum computers do indeed offer advantages over conventional computers. They developed a quantum circuit that can solve a...
Measuring the properties of superconducting materials in magnetic fields at close to absolute zero temperatures is difficult, but necessary to understand their quantum properties. How cold? Lower than 0.05 Kelvin (-272°C).
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The search for Majorana bound states (MBSs) has been fueled by the prospect of using their non-Abelian statistics for robust quantum computation. Two-dimensional superconducting topological materials have been predicted to...
SupercomputersQuantum Computers more... Science Magazine 4 weeks
Quantum effects can enhance information-processing capabilities and speed up the solution of certain computational problems. Whether a quantum advantage can be rigorously proven in some setting or demonstrated experimentally using near-term devices is the subject of active debate....
SupercomputersQuantum Computers more... Science Magazine 4 weeks
The internet—a vast network that enables simultaneous long-range classical communication—has had a revolutionary impact on our world. The vision of a quantum internet is to fundamentally enhance internet technology by enabling quantum...
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Taking advantage of nuclear spins for electronic structure analysis, magnetic resonance imaging, and quantum devices hinges on knowledge and control of the surrounding atomic-scale environment. We measured and manipulated the hyperfine interaction...
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Researchers at the Center for Quantum Nanoscience (QNS) within the Institute for Basic Science (IBS) in South Korea have made a major...
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For many years, quantum computers were not much more than an idea. Today, companies, governments and intelligence agencies are investing in the development of quantum technology. Robert König, professor for the theory of complex quantum systems...
A new study suggests that many theorized heavy particles, if they exist at all, do not have the properties needed to explain the predominance of matter...
Big BangAntimatterUniverse more... SCIENCE DAILY 4 weeks
This year's Breakthrough Prize honors pulsar discoverer Jocelyn Bell Burnell, a pioneer in the field of multi-messenger astronomy, gravitational-wave researchers and scientists investigating the nature of gravity and...
Hacker attacks on everything from social media accounts to government files could be largely prevented by the advent of quantum communication, which would use...
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Quantum EntanglementQuantum ComputersTheory of EverythingString Theory
Quantum 'compass' could allow navigation without relying on satellites
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Physicists name and codify new field in nanotechnology: 'electron quantum metamaterials'
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Scientists 'tame' some disruptive environmental effects on quantum computers
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STAR Detector on the move
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