Quantum Mechanics
Manipulating atoms one at a time with an electron beam  nanowerk · 4 hours
Researchers have a method that can reposition atoms with a highly focused electron beam and control their exact location and bonding orientation. The finding could ultimately lead to... more
Correlation between scale-invariant normal-state resistivity and superconductivity in an electron-doped cuprate  Science Magazine · 2 days
An understanding of the normal state in the high-temperature superconducting cuprates is crucial to the ultimate understanding of the long-standing problem of the origin of the... more
Selective trapping of hexagonally warped topological surface states in a triangular quantum corral  Science Magazine · 2 days
The surface of a three-dimensional topological insulator (TI) hosts two-dimensional massless Dirac fermions (DFs), the gapless and spin-helical nature of which leads... more
On-demand photonic entanglement synthesizer  Science Magazine · 2 days
Quantum information protocols require various types of entanglement, such as Einstein-Podolsky-Rosen, Greenberger-Horne-Zeilinger, and cluster states. In optics, on-demand preparation of these states has been realized by squeezed light sources, but such experiments require different optical circuits for different entangled states,... more
Macroscopic electron quantum coherence in a solid-state circuit  PHYS.ORG · 2 days
A team of researchers at the Centre de Nanosciences et de Nanotechnologies (C2N, CNRS/Univ. Paris-Saclay) has experimentally achieved the coherent propagation of electrons in circuits over macroscopic distances through a novel nano-engineering... more
Quantum gas microscopy of Rydberg macrodimers  Science Magazine · 3 days
The subnanoscale size of typical diatomic molecules hinders direct optical access to their constituents. Rydberg macrodimers—bound states of two highly excited Rydberg atoms—feature interatomic distances easily exceeding optical wavelengths. We report the direct microscopic observation and... more
Researchers shed new light on atomic 'wave function'  nanowerk · 3 days
High-res technique improves ability to measure a quantum system's essential information. more
Atomic 'wave function': Research sheds new light  SCIENCE DAILY · 3 days
Physicists have demonstrated a new way to obtain the essential details of an isolated quantum system through direct observation. The method gives information about the likelihood of finding atoms at specific locations in the... more
Researchers shed new light on atomic 'wave function'  PHYS.ORG · 3 days
Physicists have demonstrated a new way to obtain the essential details that describe an isolated quantum system, such as a gas of atoms, through direct observation. The new method gives information about... more
Scientists develop ultrasensitive organic phototransistors based on novel hybrid-layered architecture  PHYS.ORG · 3 days
Organic phototransistors (OPTs) are widely used in environmental/health monitoring, quantum communication, chemical/biomedical sensing, remote control, surveillance, and image sensors since they are lightweight, low-cost, highly efficient and environmentally... more
Quantum cloud computing with self-check  SCIENCE DAILY · 4 days
With a quantum coprocessor in the cloud, physicists have opened the door to the simulation of previously unsolvable problems in chemistry, materials research or high-energy physics. In a new study, researchers report how they simulated particle physics phenomena... more
Reprogrammable satellite takes shape  ESA · 4 days
The payload and platform of the first European satellite that can be completely reprogrammed after launch have been successfully joined together. The assembly of Eutelsat Quantum took place... more
Capturing single photons to explore fundamental physics and quantum information science  PHYS.ORG · 4 days
Quantum optics, where light and matter interactions are examined at the microscopic level, has earned Nobel prizes—including three awarded since 2001—for some of science's biggest names.... more
Holographic imaging of electromagnetic fields using electron-light quantum interference  PHYS.ORG · 4 days
In conventional holography a photographic film can record the interference pattern of monochromatic light scattered from the object to be imaged with a reference beam of un-scattered light. Scientists can... more
Quantum physicists shining new light on cave art  PHYS.ORG · 4 days
Leslie Van Gelder, a well-known American-born archeologist has been working with Dr. Harald Schwefel, and other physicists at Otago University to develop a lamp that mimics the flickering torch light that paleolithic... more
Digital quantum simulators can be astonishingly robust  PHYS.ORG · 4 days
In solving quantum-physical problems in many-body systems, such as predicting material properties, conventional computers rapidly reach the limits of their capacity. Digital quantum simulators might help, but until now they are drastically limited to... more
Accelerating quantum technologies with materials processing at the atomic scale  nanowerk · 5 days
An emerging suite of information technologies based on fundamental quantum physics has been given a boost by researchers, who have invented a method to engineer single atomic defects... more
Accelerating quantum technologies with materials processing at the atomic scale  PHYS.ORG · 5 days
'Quantum technologies' utilise the unique phenomena of quantum superposition and entanglement to encode and process information, with potentially profound benefits to a wide range of information technologies from... more
Accelerating quantum technologies with materials processing at the atomic scale  SCIENCE DAILY · 5 days
An emerging suite of information technologies based on fundamental quantum physics has been given a boost by researchers who have invented a method to engineer single atomic defects... more
Generating high-quality single photons for quantum computing  PHYS.ORG · 5 days
MIT researchers have designed a way to generate, at room temperature, more single photons for carrying quantum information. The design, they say, holds promise for the development of practical quantum computers. more
Quantum world-first: Researchers reveal accuracy of two-qubit calculations in silicon  SCIENCE DAILY · 6 days
Engineers have measured the accuracy of silicon two-qubit operations for the first time -- and their results confirm the promise of silicon for quantum computing. more
Quantum world-first—researchers reveal accuracy of two-qubit calculations in silicon  PHYS.ORG · 6 days
For the first time ever, researchers have measured the fidelity—that is, the accuracy—of two-qubit logic operations in silicon, with highly promising results that will enable scaling up to a full-scale... more
Photon superbunching from a generic tunnel junction  Science Magazine · 1 week
Generating time-correlated photon pairs at the nanoscale is a prerequisite to creating highly integrated optoelectronic circuits that perform quantum computing tasks based on heralded single photons. Here, we demonstrate fulfilling this requirement with a... more
A dance of two: tailoring interactions between remote fluids of excitons  PHYS.ORG · 1 week
An international collaboration involving European, Israeli, and US scientists realize for the first time strong and directionally dependent interactions in quantum liquids of excitons, which contrasts... more
Computing faster with quasi-particles  nanowerk · 1 week
Researchers have made an important step on the road to topological quantum computers. Whereas previous experiments in this field have mostly focused on one-dimensional systems, the team succeeded in going to two-dimensional systems. more
Designer defects in nanodiamonds  nanowerk · 1 week
New method for creating color centers - a pathway to quantum materials. more
Generating multiphoton quantum states on silicon  PHYS.ORG · 1 week
In a recent study now published in Light: Science & Applications, Ming Zhang, Lan-Tian Feng and an interdisciplinary team of researchers at the departments of quantum information, quantum physics and modern optical instrumentation in China, detailed... more
Discrete energy levels without confinement – a new quantum trick  PHYS.ORG · 1 week
Nanostructures can be designed such a way that the quantum confinement allows only certain electron energy levels. Researchers from IMDEA Nanociencia, UAM and ICMM-CSIC have, for the first... more
Researchers violate Bell's inequality with remotely connected superconducting qubits  PHYS.ORG · 2 weeks
The efficient generation of entanglement between remote quantum nodes is a crucial step in securing quantum communications. In past research, entanglement has often been achieved using a number of different... more
S-money: Ultra-secure form of virtual money proposed  PHYS.ORG · 2 weeks
A new type of money that allows users to make decisions based on information arriving at different locations and times, and that could also protect against attacks from quantum computers, has been proposed by... more
Quantum computing with graphene plasmons  PHYS.ORG · 2 weeks
A novel material that consists of a single sheet of carbon atoms could lead to new designs for optical quantum computers. Physicists from the University of Vienna and the Institute of Photonic Sciences in Barcelona have shown that... more
New all-fiber device simplifies free-space based quantum key distribution  SCIENCE DAILY · 2 weeks
Researchers have developed a simple and stable device to generate the quantum states necessary for quantum key distribution. The device could make it more practical to develop a global data... more
Quantum computing with graphene plasmons  SCIENCE DAILY · 2 weeks
A novel material that consists of a single sheet of carbon atoms could lead to new designs for optical quantum computers. Physicists have shown that tailored graphene structures enable single photons to interact with each other. more
New all-fiber device simplifies free-space based quantum key distribution  PHYS.ORG · 2 weeks
Researchers have developed a simple and stable device to generate the quantum states necessary for quantum key distribution. The device could make it more practical to develop a global data... more
High-Velocity Charged Particles Emit Cherenkov Radiation in Quantum Vacuum  SCI-NEWS.COM · 2 weeks
According to new research published in the journal Physical Review Letters, charged particles traveling through empty space can... more
First demonstration of antimatter wave interferometry  PHYS.ORG · 2 weeks
Matter waves constitute a crucial feature of quantum mechanics, in which particles have wave properties in addition to particle characteristics. This wave-particle duality was postulated in 1924 by the French physicist Louis de Broglie. The existence... more
New holographic technique opens the way for quantum computation  PHYS.ORG · 2 weeks
Photography measures how much light of different color hits the photographic film. However, light is also a wave, and is therefore characterized by the phase. Phase specifies the position of... more
Quantum computing with graphene plasmons  nanowerk · 2 weeks
In their proposed graphene quantum logic gate, scientists show that if single plasmons are created in nanoribbons made out of graphene, two plasmons in different nanoribbons can interact through their electric fields. more
Medical News Today: Using coal as a potent antioxidant  MNT · 2 weeks
According to innovative new research, quantum dots derived from coal could lessen the impact of strokes, heart attacks, and brain injuries. more
Researchers take a bottom-up approach to synthesizing nanodiamonds for bioimaging, quantum computing  nanowerk · 2 weeks
Researchers used extremely high pressure and temperature to dope nanodiamonds. They used this approach to dope nanodiamonds with silicon, causing the diamonds to glow... more
Antimatter keeps with quantum theory. It’s both particle and wave  SCIENCE-NEWS · 2 weeks
A new variation of the classic double-slit experiment confirms that antimatter, like normal matter, has wave-particle duality. more
Anti-Stokes excitation of solid-state quantum emitters for nanoscale thermometry  Science Magazine · 2 weeks
Color centers in solids are the fundamental constituents of a plethora of applications such as lasers, light-emitting diodes, and sensors, as well as the foundation of advanced quantum information and... more
First demonstration of antimatter wave interferometry  Science Magazine · 2 weeks
Interference of matter waves is at the heart of quantum physics and has been observed for a wide range of particles from electrons to complex molecules. Here, we demonstrate matter wave interference of single positrons using... more
High-pressure, high-temperature molecular doping of nanodiamond  Science Magazine · 2 weeks
The development of color centers in diamond as the basis for emerging quantum technologies has been limited by the need for ion implantation to create the appropriate defects. We present a versatile method to dope diamond... more
Holographic imaging of electromagnetic fields via electron-light quantum interference  Science Magazine · 2 weeks
Holography relies on the interference between a known reference and a signal of interest to reconstruct both the amplitude and the phase of that signal. With electrons, the extension of... more
Bottom-up approach can synthesize microscopic diamonds for bioimaging, quantum computing  PHYS.ORG · 2 weeks
Scientists are excited about diamonds—not the types that adorn jewelry, but the microscopic variety that are less than the width of a human hair. These so-called "nanodiamonds" are... more
A novel technique that uses quantum light to measure temperature at the nanoscale  PHYS.ORG · 2 weeks
Being able to measure, and monitor, temperatures and temperature changes at miniscule scales—inside a cell or in micro and nano-electronic components—has the... more
Quantum sensor for photons  SCIENCE DAILY · 2 weeks
A photodetector converts light into an electrical signal, causing the light to be lost. Researchers have now built a quantum sensor that can measure light particles non-destructively. It can be used to further investigate the quantum properties of light. more
Quantum sensor for photons  PHYS.ORG · 2 weeks
A photodetector converts light into an electrical signal, causing the light to be lost. Researchers led by Tracy Northup at the University of Innsbruck have now built a quantum sensor that can measure light particles non-destructively. It can be used... more
A quantum leap in particle simulation  PHYS.ORG · 2 weeks
A group of scientists at the Department of Energy's Fermilab has figured out how to use quantum computing to simulate the fundamental interactions that hold together our universe. more
Strongly correlated quantum walks with a 12-qubit superconducting processor  Science Magazine · 2 weeks
Quantum walks are the quantum analogs of classical random walks, which allow simulating large-scale quantum many-body systems and realizing universal quantum computation without time-dependent control. We experimentally demonstrate quantum walks... more
Electrical suppression of all nonradiative recombination pathways in monolayer semiconductors  Science Magazine · 2 weeks
Defects in conventional semiconductors substantially lower the photoluminescence (PL) quantum yield (QY), a key metric of optoelectronic performance that directly dictates the maximum device efficiency. Two-dimensional transition-metal dichalcogenides... more
Machine Learning paves the way for next-level quantum sensing  nanowerk · 2 weeks
Scientists have reached new heights of sophistication in detecting magnetic fields with extreme sensitivity at room temperature by combining machine learning with a quantum sensor. more
Machine learning paves the way for next-level quantum sensing  PHYS.ORG · 2 weeks
Researchers at the University of Bristol have reached new heights of sophistication in detecting magnetic fields with extreme sensitivity at room temperature by combining machine learning with a quantum sensor. more
Phonon-mediated quantum state transfer and remote qubit entanglement  PHYS.ORG · 2 weeks
Quantum information platforms are based on qubits that talk to each other and photons (optical and microwave) are the carrier of choice—to date, to transfer quantum states between qubits. However, in some... more
Scientists connect quantum bits with sound over record distances  PHYS.ORG · 3 weeks
Scientists with the Institute for Molecular Engineering at the University of Chicago have made two breakthroughs in the quest to develop quantum technology. In one study, they entangled two quantum... more
An atom in a cavity extracts highly pure single photons from weak laser light  PHYS.ORG · 3 weeks
Quantum physicists can now distil a kind of photon schnapps. When spirits are distilled, the alcohol content increases relative to... more
A science-themed escape room gives the brain a workout  SCIENCE-NEWS · 3 weeks
Quantum physicist Paul Kwiat reveals what it takes do well in LabEscape, his science-themed escape room. more
Physicists set a new record of quantum memory efficiency  PHYS.ORG · 3 weeks
Like memory in conventional computers, quantum memory components are essential for quantum computers—a new generation of data processors that exploit quantum mechanics and can overcome the limitations of classical computers.... more
Chemists manipulate the quantum states of gold nanoclusters  SCIENCE DAILY · 3 weeks
Researchers have found a way to control the lifetime of the quantum states of gold nanoclusters by three orders of magnitude, which could lead to improvements in solar cell and photocatalysis technologies. more
Chemists manipulate the quantum states of gold nanoclusters  PHYS.ORG · 3 weeks
Researchers from Carnegie Mellon University's Department of Chemistry have found a way to control the lifetime of the quantum states of gold nanoclusters by three orders of magnitude, which could lead to... more
Chemists manipulate the quantum states of gold nanoclusters  nanowerk · 3 weeks
Scientists have found a way to control the lifetime of the quantum states of gold nanoclusters by three orders of magnitude, which could lead to improvements in solar cell and photocatalysis technologies. more
Remote connections? Detangling entanglement in quantum physics  PHYS.ORG · 3 weeks
Quantum computers, quantum cryptography and quantum (insert name here) are often in the news these days. Articles about them inevitably refer to entanglement, a property of quantum physics that makes all these magical devices... more
Coffee machine helps physicists to make more efficient ion traps  PHYS.ORG · 3 weeks
Scientists from ITMO University have developed and applied a new method for analyzing the electromagnetic field inside ion traps. For the first time, they explained the field deviations... more
Surprising quantum effect in hard disk drive material  SCIENCE DAILY · 3 weeks
Scientists have further explored a new effect that enhances their ability to control the direction of electron spin in certain materials. Their discovery may lead to more powerful and energy-efficient materials for... more
Unprecedented insight into two-dimensional magnets using diamond quantum sensors  PHYS.ORG · 3 weeks
For the first time, physicists at the University of Basel have succeeded in measuring the magnetic properties of atomically thin van der Waals materials on the nanoscale. They used diamond... more
New insights into quantum measurements  PHYS.ORG · 3 weeks
Researchers from the University of Bristol have shed new light on the process of quantum measurement, one of the defining, and most quantum features of quantum mechanics. more
Phonon-mediated quantum state transfer and remote qubit entanglement  Science Magazine · 3 weeks
Phonons, and in particular surface acoustic wave phonons, have been proposed as a means to coherently couple distant solid-state quantum systems. Individual phonons in a resonant structure can be controlled and detected... more
Unprecedented insight into two-dimensional magnets using diamond quantum sensors  nanowerk · 3 weeks
For the first time, physicists have succeeded in measuring the magnetic properties of atomically thin van der Waals materials on the nanoscale. more
Extracting something from nothing: A bright glow from empty space  SCIENCE DAILY · 3 weeks
Particles traveling through empty space can emit bright flashes of gamma rays by interacting with the quantum vacuum, according to a new study. more
Extracting something from nothing: A bright glow from empty space  PHYS.ORG · 3 weeks
Particles travelling through empty space can emit bright flashes of gamma rays by interacting with the quantum vacuum, according to a new study by researchers at the University... more
Liquid crystals in nanopores produce a surprisingly large negative pressure  PHYS.ORG · 3 weeks
Negative pressure governs not only the Universe or the quantum vacuum. This phenomenon, although of a different nature, appears also in liquid crystals confined in nanopores. At the... more
Peering into plasma mirrors  PHYS.ORG · 3 weeks
When light interacts with a mirror which is moving towards it at a speed close to the speed of light, its wavelength is shifted into the extreme ultraviolet region of the spectrum. This effect was first predicted by Albert Einstein.... more
Coal could yield treatment for traumatic injuries  SCIENCE DAILY · 4 weeks
Coal-derived graphene quantum dots, when modified with a polymer, are effective antioxidants. They could lead to a therapy for people who suffer traumatic brain injuries, strokes or heart attacks. more
New robust device may scale up quantum tech  SCIENCE DAILY · 4 weeks
A new device may bring scalable quantum bits because it's planar, just like silicon wafers already in use, and robust thanks to protective properties enabled by combining aluminum and indium arsenide. more
Graphene quantum dots could yield treatment for traumatic injuries  nanowerk · 4 weeks
Graphene quantum dots drawn from common coal may be the basis for an effective antioxidant for people who suffer traumatic brain injuries, strokes or heart attacks. more
Scientists discover coal-derived 'dots' are effective antioxidant  PHYS.ORG · 4 weeks
Graphene quantum dots drawn from common coal may be the basis for an effective antioxidant for people who suffer traumatic brain injuries, strokes or heart attacks. more
New robust device may scale up quantum tech, researchers say  PHYS.ORG · 4 weeks
Researchers have been trying for many years to build a quantum computer that industry could scale up, but the building blocks of quantum computing, qubits, still aren't robust... more
Atom interaction discovery valuable for future quantum technologies  SCIENCE DAILY · 4 weeks
By breaking with conventionality, physicists have opened up new research and technology opportunities involving the basic building block of the world -- atoms. Researchers put one atom inside each of two laser... more
Atom interaction discovery valuable for future quantum technologies  PHYS.ORG · 4 weeks
By breaking with conventionality, University of Otago physicists have opened up new research and technology opportunities involving the basic building block of the world—atoms. more
Physicists Turn Quantum Gas into Supersolid  SCI-NEWS.COM · 4 weeks
Predicted five decades ago, supersolidity is an exotic phase of matter where superfluidity and crystalline order coexist. By combining theory and experiments, a team... more
Nanocomponent is a quantum leap for Danish physicists  PHYS.ORG · 4 weeks
University of Copenhagen researchers have developed a nanocomponent that emits light particles carrying quantum information. Less than one-tenth the width of a human hair, the miniscule component makes it possible to scale... more
Quantum gas turns supersolid  PHYS.ORG · 4 weeks
Researchers led by Francesca Ferlaino from the University of Innsbruck and the Austrian Academy of Sciences report in Physical Review X on the observation of supersolid behavior in dipolar quantum gases of erbium and dysprosium. In the dysprosium gas these... more
Quantum distillery for light  nanowerk · 4 weeks
The distillation of spirits increases the content of alcohol relative to the water content. A similar method works on light quanta - photons. It extracts individual photons from a light source, reduces the unwanted vacuum component, and heralds this event. more
Nanocomponent is a quantum leap  SCIENCE DAILY · 4 weeks
Researchers have developed a nanocomponent that emits light particles carrying quantum information. Less than one-tenth the width of a human hair, the minuscule component makes it possible to scale up and could ultimately reach the capabilities required for... more
Atomic beams shoot straighter via cascading silicon peashooters  SCIENCE DAILY · 4 weeks
Atomic beams conjure fantasies of gigantic Space Force canons. But there are real tiny atomic beams that shoot out of newly engineered collimators, a kind of tiny silicon peashooter, that could land... more
Quantum gas turns supersolid  SCIENCE DAILY · 4 weeks
Researchers report on the observation of supersolid behavior in dipolar quantum gases of erbium and dysprosium. In the dysprosium gas these properties are unprecedentedly long-lived. This sets the stage for future investigations into the nature of this exotic phase of... more
Nanomechanical router is a quantum leap for physicists  nanowerk · 4 weeks
Physicists have developed a nanocomponent that emits light particles carrying quantum information. more
Quantum gas turns supersolid  nanowerk · 4 weeks
Scientists report on the observation of supersolid behavior in dipolar quantum gases of erbium and dysprosium. In the dysprosium gas these properties are unprecedentedly long-lived. This sets the stage for future investigations into the nature of this exotic phase of... more
Quantum EntanglementQuantum ComputersTheory of EverythingString Theory
Quantum world-first: Researchers reveal accuracy of two-qubit calculations in silicon
SCIENCE DAILY
New holographic technique opens the way for quantum computation
PHYS.ORG
How a Last-Ditch Hack Led to the Invention of Quantum Mechanics
SPACE.COM
Remote connections? Detangling entanglement in quantum physics
PHYS.ORG
Fresh