Quantum Mechanics
Bizarre Superfluid Could Explain the Existence of the Modern Universe  LIVE SCIENCE · 3 hours
Back in the first moment of the universe, everything was hot and dense and in perfect balance. A new quantum experiment aims to show how that changed. more
New quantum structures in super-chilled helium may mirror early days of universe  nanowerk · 5 hours
Experimental proof of a decades-old prediction opens a pathway to recreate possible conditions of the early universe here on earth. more
Understanding insulators with conducting edges  PHYS.ORG · 6 hours
Insulators that are conducting at their edges hold promise for interesting technological applications. However, until now their characteristics have not been fully understood. Physicists at Goethe University have now modelled what are known as topological insulators with the... more
New quantum structures in super-chilled helium may mirror early days of universe  SCIENCE DAILY · 6 hours
Experimental proof of a decades-old prediction opens a pathway to recreate possible conditions of the early universe here on earth. more
New quantum structures in super-chilled helium may mirror early days of universe  PHYS.ORG · 7 hours
For the first time, researchers have documented the long-predicted occurrence of 'walls bound by strings' in superfluid helium-3. The existence of such an object,... more
Experiments detect entropy production in mesoscopic quantum systems  PHYS.ORG · 7 hours
The production of entropy, which means increasing the degree of disorder in a system, is an inexorable tendency in the macroscopic world owing to the second law of thermodynamics. This makes the... more
Experiments detect entropy production in mesoscopic quantum systems  SCIENCE DAILY · 1 day
One of the most important aims of contemporary scientific research is finding out what makes the production of entropy predominate. This aim explains the current interest in studying mesoscopic systems, which are... more
Brilliant glow of paint-on semiconductors comes from ornate quantum physics  nanowerk · 2 days
Next-generation semiconducting materials are on the horizon, and in a new study, researchers have uncovered eccentric physics behind their potential to transform lighting technology and photovoltaics yet again. more
Researchers catalog defects that give 2D materials amazing properties  SCIENCE DAILY · 2 days
A new theoretical framework predicts the kinds of holes that can form in two-dimensional materials like graphene. The work could help in the design of new filtration and desalination devices... more
Researchers catalog defects that give 2-D materials amazing properties  PHYS.ORG · 2 days
Amid the frenzy of worldwide research on atomically thin materials like graphene, there is one area that has eluded any systematic analysis—even though this information could be crucial to a... more
Scientists discover new ways to twist and shift light  PHYS.ORG · 2 days
The results from the National Physical Laboratory's (NPL) latest research in photonics could open doors to new quantum technologies and telecoms systems more
Why Physicists Are Hunting the Strangest of the Ghost Particles  LIVE SCIENCE · 4 days
These tiny subatomic particles, showering down from the depths of space, continue to surprise (and annoy) physicists chasing them. more
Direct observation of shift and ballistic photovoltaic currents  Science Magazine · 5 days
The quantum phenomenon of shift photovoltaic current was predicted decades ago, but this effect was never observed directly because shift and ballistic currents coexist. The atomic-scale relaxation time of shift, along with... more
More stable light comes from intentionally 'squashed' quantum dots  PHYS.ORG · 6 days
Intentionally "squashing" colloidal quantum dots during chemical synthesis creates dots capable of stable, "blink-free" light emission that is fully comparable with the light produced by dots made with more complex... more
More stable light comes from intentionally 'squashed' quantum dots  SCIENCE DAILY · 6 days
Intentionally 'squashing' colloidal quantum dots during chemical synthesis creates dots capable of stable, 'blink-free' light emission that is fully comparable with the light produced by dots made with more complex... more
More stable light comes from intentionally 'squashed' quantum dots  nanowerk · 6 days
Exploiting new ?strain engineering? approach produces highly stable, narrow linewidth light from individual quantum dots. more
A step closer to a data superhighway for future internet  PHYS.ORG · 6 days
An international team of researchers led by ANU is helping to build a safe data superhighway for the highly anticipated quantum internet, which promises a new era of... more
World-first chameleon satellite leaving native British shores  PHYS.ORG · 6 days
The last component of British-built chameleon satellite, Eutelsat Quantum, is getting ready to leave home for good. more
World-first chameleon satellite leaving native British shores  ESA · 1 week
The last component of British-built chameleon satellite, Eutelsat Quantum, is getting ready to leave home for good. more
Scientists realize a three-dimensional 'topological' medium for electromagnetic waves  PHYS.ORG · 1 week
Topological insulators are exotic states of matter that physicists have been intensely studying for the past decade. Their most intriguing feature is that they can be rigorously distinguished from all... more
Programming light on a chip  nanowerk · 1 week
Research opens doors in photonic quantum information processing, optical signal processing and microwave photonics. more
Scientists move quantum optic networks a step closer to reality  PHYS.ORG · 1 week
Scientists have moved quantum optic networks a step closer to reality. The ability to precisely control the interactions of light and matter at the nanoscale could help such... more
Quantum scientists demonstrate world-first 3D atomic-scale quantum chip architecture  SCIENCE DAILY · 1 week
Scientists have shown that their pioneering single atom technology can be adapted to building 3D silicon quantum chips -- with precise interlayer alignment and highly accurate measurement of spin states.... more
Quantum scientists demonstrate world-first 3D atomic-scale quantum chip architecture  nanowerk · 1 week
Scientists have shown for the first time that they can build atomic precision qubits in a 3D device - another major step towards a universal quantum computer. more
Quantum scientists demonstrate world-first 3-D atomic-scale quantum chip architecture  PHYS.ORG · 1 week
UNSW researchers at the Centre of Excellence for Quantum Computation and Communication Technology (CQC2T) have shown for the first time that they can build atomic precision qubits in a 3-D... more
Machine learning and quantum mechanics team up to understand water at the atomic level  nanowerk · 1 week
A collaborative study provides physical insights into these questions by marrying data-driven machine learning techniques and quantum mechanics. more
Rovibrational quantum state resolution of the C60 fullerene  PHYS.ORG · 1 week
A central objective of chemical and molecular physics is to understand molecules as quantum mechanical systems. The complex internal dynamics of such systems evolve across wide energy and time scales, exhibited by... more
‘Beyond Weird’ and ‘What Is Real?’ try to make sense of quantum weirdness  SCIENCE-NEWS · 1 week
The books ‘Beyond Weird’ and ‘What is Real?’ have different perspectives on what quantum physics says about reality. more
Novel fiber-optic device lays foundation for quantum-enhanced measurements  nanowerk · 2 weeks
Nonlinear interferometer demonstrates the potential for eventual quantum-enhanced sensitivity improvements in later iterations of the instrument, which could advance fundamental science, as well as improve various engineering and practical applications. more
Counter-propagating charge transport in the quantum Hall effect regime  Science Magazine · 2 weeks
The quantum Hall effect, observed in a two-dimensional (2D) electron gas subjected to a perpendicular magnetic field, imposes a 1D-like chiral, downstream, transport of charge carriers along the sample edges.... more
Exceptional points in optics and photonics  Science Magazine · 2 weeks
Exceptional points are branch point singularities in the parameter space of a system at which two or more eigenvalues, and their corresponding eigenvectors, coalesce and become degenerate. Such peculiar degeneracies are distinct features of non-Hermitian systems,... more
Rovibrational quantum state resolution of the C60 fullerene  Science Magazine · 2 weeks
The unique physical properties of buckminsterfullerene, C60, have attracted intense research activity since its original discovery. Total quantum state–resolved spectroscopy of isolated C60 molecules has been of particularly long-standing interest. Such observations... more
Scientists move quantum optic networks a step closer to reality  nanowerk · 2 weeks
A crucial step has been achieved in understanding quantum optical behavior of semiconductor nanomaterials. more
Synthetic WSe2 monolayers with high photoluminescence quantum yield  Science Magazine · 2 weeks
In recent years, there have been tremendous advancements in the growth of monolayer transition metal dichalcogenides (TMDCs) by chemical vapor deposition (CVD). However, obtaining high photoluminescence quantum yield (PL QY), which is... more
Observation of twist-induced geometric phases and inhibition of optical tunneling via Aharonov-Bohm effects  Science Magazine · 2 weeks
Geometric phases appear ubiquitously in many and diverse areas of the physical sciences, ranging from classical and molecular dynamics to quantum mechanics... more
Dynamical interference in the vibronic bond breaking reaction of HCO  Science Magazine · 2 weeks
First-principles treatments of quantum molecular reaction dynamics have reached the level of quantitative accuracy even in cases with strong non–Born-Oppenheimer effects. This achievement permits the interpretation of puzzling... more
Nonlinear integrated quantum electro-optic circuits  Science Magazine · 2 weeks
Future quantum computation and networks require scalable monolithic circuits, which incorporate various advanced functionalities on a single physical substrate. Although substantial progress for various applications has already been demonstrated on different platforms, the range of diversified manipulation of... more
Quantum chemistry on quantum computers  nanowerk · 2 weeks
A quantum algorithm for tracking complex chemical reactions with neither performing demanding post-Hartree-Fock calculations nor exponential time explosion. more
Quantum chemistry on quantum computers  PHYS.ORG · 2 weeks
Quantum computing and quantum information processing technology have attracted attention in recently emerging fields. Among many important and fundamental issues in science, solving the Schroedinger equation (SE) of atoms and molecules is one of the ultimate goals in... more
Physicists record 'lifetime' of graphene qubits  SCIENCE DAILY · 2 weeks
Researchers have recorded, for the first time, quantum coherence of a graphene-based superconducting qubit, meaning how long it stays in superposition to compute with two logical states simultaneously. The work is a key step forward for... more
Physicists record 'lifetime' of graphene qubits  PHYS.ORG · 2 weeks
Researchers from MIT and elsewhere have recorded, for the first time, the "temporal coherence" of a graphene qubit—meaning how long it can maintain a special state that allows it to represent two logical states simultaneously. The... more
Hybrid qubits solve key hurdle to quantum computing  PHYS.ORG · 3 weeks
Spin-based quantum computers have the potential to tackle difficult mathematical problems that cannot be solved using ordinary computers, but many problems remain in making these machines scalable. Now, an international group of... more
Description of rotating molecules made easy  PHYS.ORG · 3 weeks
Feynman diagrams are applied in condensed matter physics. By turning highly complex equations into sets of simple diagrams, the method has established itself as one of the sharpest tools in a theoretical physicist's toolbox. Giacomo Bighin,... more
Description of rotating molecules made easy  SCIENCE DAILY · 4 weeks
By turning highly complex equations into sets of simple diagrams, Feynman diagrams have established themselves as one of the sharpest tools in a theoretical physicist's toolbox. Scientists have now extended the technique: originally devised for subatomic... more
Quantum tricks to unveil the secrets of topological materials  SCIENCE DAILY · 4 weeks
'Topological materials' produce electron states that can be very interesting for technical applications, but it is extremely difficult to identify these materials and their associated electronic states. A 'crystal' made... more
Quantum tricks to unveil the secrets of topological materials  PHYS.ORG · 4 weeks
Electrons are not just little spheres, bouncing through a material like a rubber ball. The laws of quantum physics tell us that electrons behave like waves. In some materials, these... more
Quantum tricks to unveil the secrets of topological materials  nanowerk · 4 weeks
Topological materials produce electron states that can be very interesting for technical applications, but it is extremely difficult to identify these materials and their associated electronic states. A 'crystal' made... more
Electronically programmable photonic molecule  PHYS.ORG · 4 weeks
Physical systems with discrete energy levels are ubiquitous in nature and form fundamental building blocks of quantum technology. Artificial atom-like and molecule-like systems were previously demonstrated to regulate light for coherent and dynamic control of the frequency, amplitude and the... more
'Kondo metamagnet' is first in a family of eccentric quantum crystals   PHYS.ORG · 4 weeks
There's an oddball in most families, but Rice University physicist Emilia Morosan has discovered an entire clan of eccentric compounds that could help explain the mysterious... more
Satellite Study Proves Global Quantum Communication Will Be Possible  ASTRO WATCH · 4 weeks
Researchers in Italy have demonstrated the feasibility of quantum communications between high-orbiting global navigation satellites and a ground... more
Single-component quasicrystalline nanocrystal superlattices through flexible polygon tiling rule  Science Magazine · 4 weeks
Quasicrystalline superlattices (QC-SLs) generated from single-component colloidal building blocks have been predicted by computer simulations but are challenging to reproduce experimentally. We discovered that 10-fold QC-SLs could self-organize from truncated... more
End of the year podcast: 2018’s breakthroughs, breakdowns, and top online stories  Science Magazine · 4 weeks
First, we hear Online News Editor David Grimm and host Sarah Crespi discuss audience favorites and staff picks from this year’s online stories, from... more
Beyond the black hole singularity  nanowerk · 4 weeks
Loop quantum gravity is opening up a new paradigm in modern physics. The theory has emerged as a leading candidate to analyze extreme cosmological and astrophysical phenomena in parts of the universe, like black holes, where the equations... more
Beyond the black hole singularity  SCIENCE DAILY · 4 weeks
Our first glimpses into the physics that exist near the center of a black hole are being made possible using 'loop quantum gravity'-- a theory that uses quantum mechanics to extend gravitational physics beyond Einstein's theory of general... more
Beyond the black hole singularity  PHYS.ORG · 4 weeks
Our first glimpses into the physics that exist near the center of a black hole are being made possible using "loop quantum gravity"—a theory that uses quantum mechanics to extend gravitational physics beyond Einstein's theory of general relativity.... more
Team creates and demonstrates first quantum sensor for satellite gravimetry  PHYS.ORG · 4 weeks
NASA and the Sunnyvale, California-based AOSense, Inc., have successfully built and demonstrated a prototype quantum sensor capable of obtaining highly sensitive and accurate gravity measurements—a stepping stone toward... more
Quantum Maxwell's demon 'teleports' entropy out of a qubit  PHYS.ORG · 4 weeks
Researchers from the Moscow Institute of Physics and Technology, ETH Zurich, and Argonne National Laboratory, U.S, have described an extended quantum Maxwell's demon, a device locally violating the second law... more
Satellite study proves global quantum communication will be possible  SCIENCE DAILY · 4 weeks
Researchers in Italy have demonstrated the feasibility of quantum communications between high-orbiting global navigation satellites and a ground station, with an exchange at the single photon level over a distance... more
Satellite study proves global quantum communication will be possible  PHYS.ORG · 4 weeks
Researchers in Italy have demonstrated the feasibility of quantum communications between high-orbiting global navigation satellites and a ground station, with an exchange at the single photon level over a distance... more
Scientists find a way to connect quantum and classical physics  PHYS.ORG · 4 weeks
Physicists from Skoltech have invented a new method for calculating the dynamics of large quantum systems. Underpinned by a combination of quantum and classical modeling, the method has... more
Proposed test of quantum superposition measures 'quantum revivals'  PHYS.ORG · 4 weeks
Physicists have proposed an entirely new way to test the quantum superposition principle—the idea that a quantum object can exist in multiple states at the same time. The new test is based... more
Magnetoresistance ratio enhancement in Heusler-based alloy  PHYS.ORG · 4 weeks
Magnetic field sensors can enhance applications that require efficient electric energy management. Improving magnetic field sensors below the picoTesla range could enable a technique to measure brain activity at room temperature with millisecond resolution—called magnetic encephalography—without... more
Gravity is mathematically relatable to dynamics of subatomic particles  PHYS.ORG · 4 weeks
Albert Einstein's desk can still be found on the second floor of Princeton's physics department. Positioned in front of a floor-to-ceiling blackboard covered with equations, the desk seems to embody... more
Researchers demonstrate teleportation using on-demand photons from quantum dots  PHYS.ORG · 1 month
A team of researchers from Austria, Italy and Sweden has successfully demonstrated teleportation using on-demand photons from quantum dots. In their paper published in the journal Science Advances, the group... more
Quantum EntanglementQuantum ComputersTheory of EverythingString Theory
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