Quantum Mechanics
Quantum copycat: Researchers find a new way in which bosons behave like fermions  PHYS.ORG · 2 days
Bosons and fermions, the two classes into which all particles—from the sub-atomic to atoms themselves—can be sorted, behave very differently under most... more
Quantum copycat: Researchers find a new way in which bosons behave like fermions  SCIENCE DAILY · 2 days
When a one-dimensional gas of strongly interacting bosons expands, the velocity distribution of the bosons transforms into one that is identical to... more
Nonreciprocal transport in gate-induced polar superconductor SrTiO3  Science Magazine · 2 days
Polar conductors/superconductors with Rashba-type spin-orbit interaction are potential material platforms for quantum transport and spintronic functionalities. One of their inherent properties is the nonreciprocal transport, where the rightward and leftward currents become inequivalent, reflecting... more
Two-photon quantum interference and entanglement at 2.1 {mu}m  Science Magazine · 2 days
Quantum-enhanced optical systems operating within the 2- to 2.5-μm spectral region have the potential to revolutionize emerging applications in communications, sensing, and metrology. However, to date, sources of entangled photons have been... more
High-frequency rectification via chiral Bloch electrons  Science Magazine · 2 days
Rectification is a process that converts electromagnetic fields into a direct current. Such a process underlies a wide range of technologies such as wireless communication, wireless charging, energy harvesting, and infrared detection. Existing rectifiers are mostly... more
Demonstration of a third-order hierarchy of topological states in a three-dimensional acoustic metamaterial  Science Magazine · 2 days
Classical wave systems have constituted an excellent platform for emulating complex quantum phenomena, such as demonstrating topological phenomena in photonics and acoustics.... more
Researchers catch light in a funnel  PHYS.ORG · 2 days
Professor Ronny Thomale holds a chair for theoretical condensed matter physics, the TP1, at the Julius-Maximilian University of Würzburg. The discovery and theoretical description of new quantum states of matter is a prime objective of his... more
Optimizing efficiency of quantum circuits  PHYS.ORG · 2 days
Quantum circuits, the building blocks of quantum computers, use quantum mechanical effects to perform tasks. They are much faster and more accurate than the classical circuits that are found in electronic devices today. In reality, however, no quantum... more
Quantum phenomenon governs organic solar cells  SCIENCE DAILY · 3 days
Researchers have discovered a quantum phenomenon that influences the formation of free charges in organic solar cells. more
Quantum phenomenon governs organic solar cells  nanowerk · 3 days
Vibronic coherence contributes to photocurrent generation in organic semiconductor heterojunction diodes. more
Quantum effect triggers unusual material expansion  SCIENCE DAILY · 3 days
New research may bring a whole new class of chemical elements into a materials science balancing act for designing alloys for aviation and other applications. more
Quantum effect triggers unusual material expansion  PHYS.ORG · 3 days
You know how you leave space in a water bottle before you pop it in the freezer—to accommodate the fact that water expands as it freezes? Most metal parts in airplanes face the more common opposite... more
Flux-induced topological superconductivity in full-shell nanowires  Science Magazine · 3 days
Hybrid semiconductor-superconductor nanowires have emerged as a promising platform for realizing topological superconductivity (TSC). Here, we present a route to TSC using magnetic flux applied to a full superconducting shell surrounding a semiconducting nanowire core. Tunneling... more
Frequency-comb spectroscopy on pure quantum states of a single molecular ion  Science Magazine · 3 days
Spectroscopy is a powerful tool for studying molecules and is commonly performed on large thermal molecular ensembles that are perturbed by motional shifts and interactions with... more
Quantum phenomenon governs organic solar cells  PHYS.ORG · 3 days
Researchers at Linköping University have discovered a quantum phenomenon that influences the formation of free charges in organic solar cells. "If we can properly understand what's going on, we can increase the efficiency," says Olle Inganäs,... more
A new method for the fabrication and characterization of atomic-sized photonic cavities  nanowerk · 4 days
This discovery may be fundamental for the understanding and design of new, nanometric size, opto-electronic devices which will be key for the development of... more
Zero-energy bound states in the high-temperature superconductors at the two-dimensional limit  Science Magazine · 4 days
Majorana zero modes (MZMs) that obey the non-Abelian statistics have been intensively investigated for potential applications in topological quantum computing. The prevailing signals in tunneling experiments... more
Is nonlocality inherent in all identical particles in the universe?  PHYS.ORG · 4 days
What is interaction, and when does it occur? Intuition suggests that the necessary condition for the interaction of independently created particles is their direct touch or contact through... more
Scientists develop platform for building nanoelectronics and quantum processors  PHYS.ORG · 5 days
Scientists of Far Eastern Federal University (FEFU, Vladivostok, Russia) together with colleagues from the Chinese Academy of Sciences (Beijing) have designed a platinum-cobalt-magnesium oxide microstructure coated by platinum that is... more
A key development in the drive for energy-efficient electronics  nanowerk · 6 days
Scientists have made a breakthrough in the development of a new generation of electronics that will require less power and generate less heat. It involves exploiting the complex quantum properties... more
Researchers demonstrate the missing link for a quantum internet  PHYS.ORG · 6 days
A quantum internet could be used to send unhackable messages, improve the accuracy of GPS, and enable cloud-based quantum computing. For more than twenty years, dreams of creating such a... more
The growth of an organism rides on a pattern of waves  MIT · 6 days
Study shows ripples across a newly fertilized egg are similar to other systems, from ocean and atmospheric circulations to quantum fluids. more
Researchers observe ultrafast processes of single molecules for the first time  PHYS.ORG · 6 days
Markus Koch, head of the research group Femtosecond Dynamics at the Institute of Experimental Physics at TU Graz, and his team develop new methods for time-resolved... more
Protecting quantum entanglement from leakage and qubit errors via repetitive parity measurements  Science Magazine · 1 week
Protecting quantum information from errors is essential for large-scale quantum computation. Quantum error correction (QEC) encodes information in entangled states of many qubits and... more
Surface-state Coulomb repulsion accelerates a metal-insulator transition in topological semimetal nanofilms  Science Magazine · 1 week
The emergence of quantization at the nanoscale, the quantum size effect (QSE), allows flexible control of matter and is a rich source of advanced functionalities. A... more
Scientists propose new approach to measuring atoms  PHYS.ORG · 1 week
Today, when new drugs are designed with the help of supercomputers, and electronic devices operate on a nanoscale, it is very important for scientists to understand how neighboring molecules behave towards each other. For... more
One-kilometer breakthrough made in quantum field  PHYS.ORG · 1 week
A team led by Prof. Guo Guangcan from University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) and collaborators first realized distribution of high-dimensional orbital angular momentum entanglement over a... more
Innovative new fabrication approach for reprogrammable photonic circuits  PHYS.ORG · 1 week
Modern society relies on technologies with electronic integrated circuits (IC) at their heart, but these may prove to be less suitable in future applications such as quantum computing and environmental sensing. Photonic... more
Scientists create quantum sensor that covers entire radio frequency spectrum  PHYS.ORG · 1 week
A quantum sensor could give Soldiers a way to detect communication signals over the entire radio frequency spectrum, from 0 to 100 GHz, said researchers from the Army. more
Chip-based devices improve practicality of quantum-secured communication  SCIENCE DAILY · 1 week
Researchers have demonstrated new chip-based devices that contain all the optical components necessary for quantum key distribution while increasing real-world security. The fast and cost-effective platform is poised to facilitate implementation of extremely secure... more
Chip-based devices improve practicality of quantum-secured communication  PHYS.ORG · 1 week
monstrated new chip-based devices that contain allthe optical components necessary for quantum key distribution while increasing real-world security. The fast and cost-effective platform is poised to facilitate implementation of extremely secure data communication that... more
Researchers demonstrate first terahertz quantum sensing  PHYS.ORG · 1 week
Quantum physicists rely on quantum sensing as a highly attractive method to access spectral regions and detect photons (tiny packets of light) that are generally technically challenging. They can gather sample information in the spectral region... more
Model simulator helps researchers map complex physics phenomena  PHYS.ORG · 2 weeks
To understand the behavior of quantum particles, imagine a pinball game—but rather than one metal ball, there are billions or more, all ricocheting off each other and their surroundings. more
Frozen-planet states in exotic helium atoms  PHYS.ORG · 2 weeks
Exotic subatomic particles that are like 'normal' particles apart from one, opposite, property—such as the positron, which is like an electron but positively rather than negatively charged—are collectively known as antimatter. Direct studies of collisions between... more
The imitation game: Scientists describe and emulate new quantum state of entangled photons  PHYS.ORG · 2 weeks
A research team from ITMO University, with the help of colleagues from MIPT (Russia) and Politecnico di Torino (Italy), has predicted a... more
Study unveils gapless ground state in an archetypal quantum kagome  PHYS.ORG · 2 weeks
At low enough temperatures, magnetic systems typically become solid crystals. A renowned phenomenon through which this happens is ferromagnetism, occurring when all elementary moments or spins interact at... more
Researchers set benchmark to determine achievement of quantum computing  PHYS.ORG · 2 weeks
The race toward the first practical quantum computer is in full stride. Companies, countries, collaborators, and competitors worldwide are vying for quantum supremacy. Google says it's already there. But what... more
Machine learning to scale up the quantum computer  PHYS.ORG · 2 weeks
,,Quantum computers are expected to offer tremendous computational power for complex problems –currently intractable even on supercomputers—in the areas of drug design, data science, astronomy and materials chemistry among others. more
Qubits that operate at room temperature  PHYS.ORG · 2 weeks
Scientists from NUST MISIS (Russia) together with colleagues from Sweden, Hungary and U.S., found a way to manufacture stable qubits that operate at room temperature, in contrast to the majority of existing analogues. This opens up... more
Terahertz quantum sensing  Science Magazine · 2 weeks
Quantum sensing is highly attractive for accessing spectral regions in which the detection of photons is technically challenging: Sample information is gained in the spectral region of interest and transferred via biphoton correlations into another spectral range, for which highly... more
The electronic thickness of graphene  Science Magazine · 2 weeks
When two dimensional crystals are atomically close, their finite thickness becomes relevant. Using transport measurements, we investigate the electrostatics of two graphene layers, twisted by = 22° such that the layers are decoupled by the huge momentum mismatch... more
Discovery of zero-energy bound states at both ends of a one-dimensional atomic line defect  PHYS.ORG · 2 weeks
In recent years, the development of quantum computers beyond the capability of classical computers has become a new frontier in... more
Initialization of quantum simulators by sympathetic cooling  PHYS.ORG · 2 weeks
Simulating computationally complex many-body problems on a quantum simulator has great potential to deliver insights into physical, chemical and biological systems. Physicists had previously implemented Hamiltonian dynamics but the problem of initiating quantum simulators... more
Perturbation-free studies of single molecules  SCIENCE DAILY · 2 weeks
Researchers of the University of Basel have developed a new method with which individual isolated molecules can be studied precisely -- without destroying the molecule or even influencing its quantum state. This highly sensitive technique for probing molecules... more
Quantum-nondemolition state detection and spectroscopy of single trapped molecules  Science Magazine · 2 weeks
Trapped atoms and ions, which are among the best-controlled quantum systems, find widespread applications in quantum science. For molecules, a similar degree of control is currently lacking owing to their... more
Perturbation-free studies of single molecules  PHYS.ORG · 2 weeks
Researchers of the University of Basel have developed a new method with which individual isolated molecules can be studied precisely—without destroying the molecule or even influencing its quantum state. This highly sensitive technique for probing molecules is widely... more
For the first time, scientists observe the elusive Kondo screening cloud  nanowerk · 3 weeks
An international research group has ended a fifty-year quest by directly observing a quantum phenomenon known as a Kondo screening cloud. This phenomenon, which is important... more
Researchers quantify disorder in 2D materials to build better quantum technologies  nanowerk · 3 weeks
Scientists have combined experimental and theoretical techniques to measure atomic positions of all the atoms in a 2D material and calculate how the arrangement impacts the... more
Engineers crack 58-year-old puzzle on way to quantum breakthrough  PHYS.ORG · 3 weeks
A happy accident in the laboratory has led to a breakthrough discovery that not only solved a problem that stood for more than half a century, but has major implications... more
World's first experimental observation of a Kondo cloud  PHYS.ORG · 3 weeks
Physicists have been trying to observe the Kondo cloud quantum phenomenon for many decades. An international research team including a scientist from City University of Hong Kong (CityU) has recently developed a... more
Novel error-correction scheme developed for quantum computers  PHYS.ORG · 3 weeks
Scientists in Australia have developed a new approach to reducing the errors that plague experimental quantum computers; a step that could remove a critical roadblock preventing them scaling up to full working machines. more
Bilayer graphene double quantum dots tune in for single-electron control  PHYS.ORG · 3 weeks
The first demonstration of graphene double quantum dots in which it is possible to control the number of electrons down to zero has been reported in Nano Letters.... more
Magnetic teeth revealed using quantum imaging  PHYS.ORG · 3 weeks
Biology provides us with a constant source of inspiration for designing and exploring new functional materials. more
Two-dimensional metals open pathways to new science  PHYS.ORG · 3 weeks
An atomically thin materials platform developed by Penn State researchers in conjunction with Lawrence Berkeley National Lab and Oak Ridge National Lab will open a wide range of new applications in biomolecular sensing, quantum... more
Two-dimensional metals open pathways to new science  nanowerk · 3 weeks
A new, atomically-thin materials platform will open a wide range of new applications in biomolecular sensing, quantum phenomena, catalysis and nonlinear optics. more
Study achieves a new record fiber QKD transmission distance of over 509 km  PHYS.ORG · 3 weeks
The sending-or-not-sending twin-field (SNS-TF) protocol has so far proved to be a highly promising strategy for achieving high rates over long distances... more
Researchers look at noisy quantum computer  PHYS.ORG · 3 weeks
Researchers from CSC—IT center for science, Aalto University and Åbo Akademi and their collaborators from Boston University in the U.S. have for the first time demonstrated how the noise impacts on quantum computing in a systematic... more
Life on Titan Cannot Rely on Cell Membranes, According to Computational Simulations  ASTRO WATCH · 3 weeks
Researchers from Chalmers University of Technology, Sweden, have made a new contribution to the ongoing search into the possibility of life on Titan, Saturn’s... more
Radar and ice could help detect an elusive subatomic particle  SCIENCE DAILY · 3 weeks
A new study shows, for the first time, an experiment that could detect a class of ultra-high-energy neutrinos using radar echoes. more
Radar and ice could help detect an elusive subatomic particle  PHYS.ORG · 3 weeks
One of the greatest mysteries in astrophysics these days is a tiny subatomic particle called a neutrino, so small that it passes through matter—the atmosphere, our bodies, the... more
Direct observation of topological edge states in silicon photonic crystals: Spin, dispersion, and chiral routing  Science Magazine · 3 weeks
Topological protection in photonics offers new prospects for guiding and manipulating classical and quantum information. The mechanism of... more
Initialization of quantum simulators by sympathetic cooling  Science Magazine · 3 weeks
Simulating computationally intractable many-body problems on a quantum simulator holds great potential to deliver insights into physical, chemical, and biological systems. While the implementation of Hamiltonian dynamics within a quantum simulator has already been... more
Exchange bias and quantum anomalous nomalous Hall effect in the MnBi2Te4/CrI3 heterostructure  Science Magazine · 3 weeks
The layered antiferromagnetic MnBi2Te4 films have been proposed to be an intrinsic quantum anomalous Hall (QAH) insulator with a large gap. It is crucial... more
A filter for cleaner qubits  PHYS.ORG · 3 weeks
A research team at the Tokyo Medical and Dental University (TMDU), RIKEN, and the University of Tokyo have demonstrated how to increase the lifetime of qubits inside quantum computers by using an additional "filter" qubit. This work may... more
Novel method for easier scaling of quantum devices  PHYS.ORG · 3 weeks
In an advance that may help researchers scale up quantum devices, an MIT team has developed a method to "recruit" neighboring quantum bits made of nanoscale defects in diamond, so that instead... more
Cooling magnets with sound  PHYS.ORG · 3 weeks
Today, most quantum experiments are carried out with the help of light, including those in nanomechanics, in which tiny objects are cooled with electromagnetic waves to such an extent that they reveal quantum properties. Now, a team of physicists led... more
Scientists break Google's quantum algorithm  PHYS.ORG · 3 weeks
Google is racing to develop quantum-enhanced processors that use quantum mechanical effects to reduce the speed at which data can be processed. In the near term, Google has devised new quantum-enhanced algorithms that operate in the presence of... more
'Rock-breathing' bacteria are electron spin doctors, study shows  PHYS.ORG · 3 weeks
Electrons spin. It's a fundamental part of their existence. Some spin "up" while others spin "down." Scientists have known this for about a century, thanks to quantum physics. more
Novel method for easier scaling of quantum devices  MIT · 3 weeks
System “recruits” defects that usually cause disruptions, using them to instead carry out quantum operations. more
Cooling magnets with sound  SCIENCE DAILY · 3 weeks
Today, most quantum experiments are carried out with the help of light, including those in nanomechanics, where tiny objects are cooled with electromagnetic waves to such an extent that they reveal quantum properties. Now, a team of physicists is proposing... more
A talented 2D material gets a new gig  SCIENCE DAILY · 3 weeks
Scientists have designed a tunable graphene device for experiments in exotic physics, where superconducting, insulating, and magnetic properties can be observed in a single system. The technology could advance the development of... more
A scalable realization of local U(1) gauge invariance in cold atomic mixtures  Science Magazine · 3 weeks
In the fundamental laws of physics, gauge fields mediate the interaction between charged particles. An example is the quantum theory of electrons interacting with... more
Using molecules to draw on quantum materials  SCIENCE DAILY · 3 weeks
Over millennia, civilizations progressed through the Stone, Bronze, and Iron Ages. Now the time has come for quantum materials to change the way we live, researchers say. more
Longest microwave quantum link  PHYS.ORG · 3 weeks
Physicists at ETH Zurich have demonstrated a five-meter-long microwave quantum link, the longest of its kind to date. It can be used both for future quantum computer networks and for experiments in basic quantum physics research. more
Researchers propose new physics to explain decay of subatomic particle  PHYS.ORG · 3 weeks
Florida State University physicists believe they have an answer to unusual incidents of rare decay of a subatomic particle called a Kaon that were reported last year by... more
Using molecules to draw on quantum materials  PHYS.ORG · 4 weeks
Over millennia, civilizations progressed through the Stone, Bronze, and Iron Ages. Now the time has come for quantum materials to change the way we live, thanks in part to research conducted at the Institut... more
All optical control of exciton flow in a colloidal quantum well complex  PHYS.ORG · 4 weeks
Exciton-based solid-state devices have the potential to be essential building blocks for modern information technology to slow down the end of Moore's law. Exploiting... more
A talented 2D material gets a new gig  nanowerk · 4 weeks
Scientists tap into graphene's hidden talent as an electrically tunable superconductor, insulator, and magnetic device for the advancement of quantum information science. more
Exciting apparatus helps atoms see the light  PHYS.ORG · 4 weeks
Researchers in the Light-Matter Interactions for Quantum Technologies Unit at the Okinawa Institute of Science and Technology Graduate University (OIST) have generated Rydberg atoms—unusually large excited atoms—near nanometer-thin optical fibers. Their findings, published recently... more
A theoretical approach to understand the mechanisms of 3-D spatiotemporal mode-locking  PHYS.ORG · 4 weeks
Laser technology confines light inside a resonator containing a gain medium, a material with quantum properties that can amplify light. As laser resonators are generally far... more
Coherent phonon dynamics realized in spatially separated mechanical resonators  PHYS.ORG · 4 weeks
A research group led by Prof. Guo Guoping, Song Xiangxiang, Deng Guangwei (now at UESTC), from University of Science and Technology of China (USTC) of the Chinese Academy of Sciences,... more
How a new quantum approach can develop faster algorithms to deduce complex networks  SCIENCE DAILY · 4 weeks
Complex networks are ubiquitous in the real world, from artificial to purely natural ones, and they exhibit very similar geometric properties. Algorithms... more
Honeywell unveils plan for 'most powerful' quantum computer  PHYS.ORG · 4 weeks
US manufacturing and technology group Honeywell said Tuesday it will bring to market "the world's most powerful quantum computer" aimed at tackling complex scientific and business challenges. more
How a new quantum approach can develop faster algorithms to deduce complex networks  PHYS.ORG · 4 weeks
Our world has no dearth of complex networks—from cellular networks in biology to intricate web networks in technology. These networks also form... more
Less is more for Maxwell's Demon in quantum heat engines  PHYS.ORG · 4 weeks
Over 150 years after the famous Scottish scientist James Clerk Maxwell first introduced the idea, the concept of Maxwell's demon continues to perplex physicists and information scientists. The... more
Life on Titan cannot rely on cell membranes, according to computational simulations  SCIENCE DAILY · 4 weeks
Researchers have made a new contribution to the ongoing search into the possibility of life on Titan, Saturn's largest moon. Using quantum mechanical calculations,... more
Atomic vacancy as quantum bit  SCIENCE DAILY · 4 weeks
Physicists have experimentally observed spin centers in two-dimensional materials. Such centers can act as quantum bits -- even at room temperature. more
KITE code could power new quantum developments  PHYS.ORG · 4 weeks
A research collaboration led by the University of York's Department of Physics has created open-source software to assist in the creation of quantum materials which could in turn vastly increase the world's computing power. more
The magnet that didn't exist  PHYS.ORG · 4 weeks
In 1966, Japanese physicist Yosuke Nagaoka predicted the existence of a rather striking phenomenon: Nagaoka's ferromagnetism. His rigorous theory explains how materials can become magnetic, with one caveat: the specific conditions he described do not arise naturally in... more
Physicists Precisely Measure Electric Dipole Moment of Neutron  SCI-NEWS.COM · 4 weeks
In a paper in the journal Physical Review Letters, an international team of physicists reports the most precise measurement ever... more
Quantum mechanical simulations of Earth's lower mantle minerals  PHYS.ORG · 4 weeks
The theoretical mineral physics group of Ehime University led by Dr. Taku Tsuchiya has developed high-precision computational techniques for studying Earth and planetary materials based on quantum mechanical theory and reported several... more
Scientists succeed in measuring electron spin qubit without demolishing it  nanowerk · 4 weeks
Scientists have succeeded in taking repeated measurements of the spin of an electron in a silicon quantum dot, without changing the spin in the process. This type of... more
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