Popular Quantum Dots News and Current Events | Page 25

Popular Quantum Dots News and Current Events, Quantum Dots News Articles.
Sort By: Most Relevant | Most Recent
Page 25 of 25 | 1000 Results
Dream of quantum computing closer to reality as mathematicians chase key breakthrough
The ability to exploit the extraordinary properties of quantum mechanics in novel applications, such as a new generation of super-fast computers, has come closer following recent progress with some of the remaining underlying mathematical problems. (2008-12-22)

Black holes and the dark sector explained by quantum gravity
A quantum version of General relativity published in the International Journal of Geometric Methods in Modern Physics demonstrates that Dark Energy and Dark Matter are different manifestations of gravity. The theory calculates the precise value of the cosmological constant, derives the baryonic Tully-Fisher relation, gives a quantum description of Black Holes and calculates the baryonic mass content of the observable universe. (2015-03-05)

Just seven photons can act like billions
A system made of just a handful of particles acts just like larger systems, allowing scientists to study quantum behaviour more easily. (2018-09-10)

Improving quantum computers
For decades, experts have predicted that quantum computers will someday perform difficult tasks, such as simulating complex chemical systems, that can't be done by conventional computers. But so far, these machines haven't lived up to their potential because of error-prone hardware. That's why scientists are working to improve the qubit -- the basic hardware element of quantum computers, according to an article in Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society. (2019-04-17)

New research unlocks properties for quantum information storage and computing
Researchers at Rensselaer Polytechnic Institute have come up with a way to manipulate tungsten diselenide (WSe2) -- a promising two-dimensional material -- to further unlock its potential to enable faster, more efficient computing, and even quantum information processing and storage. Their findings will be published June 6, 2019 in Nature Communications. (2019-06-06)

Putting the 'bang' in the Big Bang
Physicists at MIT, Kenyon College, and elsewhere have simulated in detail an intermediary phase of the early universe that may have bridged cosmic inflation with the Big Bang. This phase, known as ''reheating,'' occurred at the end of cosmic inflation and involved processes that wrestled inflation's cold, uniform matter into the ultrahot, complex soup that was in place at the start of the Big Bang. (2019-10-25)

Small magnets reveal big secrets
An international research team led by a physicist at the University of California, Riverside, has identified a microscopic process of electron spin dynamics in nanoparticles that could impact the design of applications in medicine, quantum computation, and spintronics. (2019-10-25)

Vision: how perceptions survive in the face of ambiguity
Because we live in a visually complex world, one of the major tasks of vision is to resolve ambiguous information into a stable image of our surroundings. By presenting subjects with differing versions of visually ambiguous images, researchers have identified the factors that are important for perceptual stabilization, a process that allows the visual system to overcome conflicting information and maintain a steady perception of an image. (2004-06-07)

Nano-watch has steady hands
An international team from the Universities of Vienna, Duisburg-Essen and Tel Aviv have created a nanomechanical hand to show the time of an electronic clock, by spinning a tiny cylinder using light. A silicon nanorod, less than a thousandth of a millimetre long, can be trapped in thin air using focussed laser beams, and spun to follow the ticking of a clock, losing only one-millionth of a second over four days. (2017-11-21)

Analysis of causality principle for the conductivity of graphene
Graphene's unusual qualities led to speculation that the causality principle may not be observed for it. The authors, Vladimir Mostepanenko and Galina Klimchitskaya, proved that the principle is preserved for graphene. Through the direct analytic calculation it was shown that the real and imaginary parts of graphene conductivity, found recently on the basis of first principles of thermal quantum field theory using the polarization tensor in (2+1)-dimensional space-time, satisfy the Kramers-Kronig relations precisely. (2018-05-15)

The relationship between charge density waves and superconductivity? It's complicated
For a long time, physicists have tried to understand the relationship between a periodic pattern of conduction electrons called a charge density wave (CDW), and another quantum order, superconductivity, or zero electrical resistance, in the same material. Do they compete? Co-exist? Co-operate? Do they go their separate ways? (2018-07-18)

Story tips from the Department of Energy's Oak Ridge National Laboratory, September 2018
ORNL story tips: Lab, field tests show improved building insulation performance; ORNL-developed software runs quantum programs on multiple quantum computers; ORNL moved single atoms below a crystal's surface; certain bacteria turns mercury into methylmercury at varying rates across species; ORNL hosts Molten Salt Reactor Workshop in October. (2018-09-04)

Pushing the (extra cold) frontiers of superconducting science
Ames Laboratory has developed a method to measure magnetic properties of superconducting and magnetic materials that exhibit unusual quantum behavior at very low temperatures in high magnetic fields. (2018-10-18)

In small groups, people follow high-performing leaders
Researchers at the NYU Tandon School of Engineering have cracked the code on how leaders arise from small groups of people over time. The work is detailed in a study, 'Social information and Spontaneous Emergence of Leaders in Human Groups,' published in The Royal Society Interface. The team included Maurizio Porfiri, professor of mechanical and aerospace engineering and of biomedical engineering at NYU Tandon and Shinnosuke Nakayama, postdoctoral researcher at NYU Tandon. (2019-02-21)

Valleytronics core theory for future high-efficiency semiconductor technology
Professor Jae Dong Lee's team developed anomalous current and suggested a control mechanism by forming valley domain. Valley domain will become new killer contents of 2D semiconductor technology. (2019-07-24)

Knots in chaotic waves
New research, using computer models of wave chaos, has shown that three-dimensional tangled vortex filaments can in fact be knotted in many highly complex ways. (2016-07-29)

Graphene used to create world's smallest transistor
Researchers have used the world's thinnest material to create the world's smallest transistor, one atom thick and ten atoms wide. (2008-04-17)

Method found to 'purify' partially entangled states
Entanglement, the bizarre quantum mechanical connection that can exist between particles, is an essential component in many quantum information processing applications. But the connection between the particles can become (2001-02-20)

Marrying superconductors, lasers, and Bose-Einstein condensates
As superconductors, lasers, and Bose-Einstein condensates all share a common feature, it has been expected that it should be able to see these features at the same time. A recent experiment in a global collaborative effort with teams from Japan, the United States, and Germany have observed for the first time experimental indication that this expectation is true. (2016-06-17)

Solving one of nature's great puzzles: What drives the accelerating expansion of the universe?
UBC physicists may have solved one of nature's great puzzles: what causes the accelerating expansion of our universe? (2017-05-15)

Quantum trick blocks background 'chatter' in sensing devices
A new protocol developed by University of Sydney physicists has solved a common problem in quantum sensing devices, which should enable a new generation of ultra-sensitive sensors with application in medical imaging and defence. (2017-12-19)

Deeper understanding of quantum chaos may be the key to quantum computers
New research gives insight into a recent experiment that was able to manipulate an unprecedented number of atoms through a quantum simulator. This new theory could provide another step on the path to creating the elusive quantum computers. (2018-05-14)

Valves for tiny particles
Newly-developed nanovalves allow the flow of individual nanoparticles in liquids to be controlled in tiny channels. This is of interest for lab-on-a-chip applications such as in materials science and biomedicine. (2018-05-23)

For UW physicists, the 2-D form of tungsten ditelluride is full of surprises
In a paper published online July 23 in the journal Nature, a UW-led research team reports that the 2-D form of tungsten ditelluride can undergo 'ferroelectric switching.' Materials with ferroelectric properties can have applications in memory storage, capacitors, RFID card technologies and even medical sensors -- and tungsten ditelluride is the first exfoliated 2-D material known to undergo ferroelectric switching. (2018-08-09)

Study reveals substantial evidence of holographic universe
A UK, Canadian and Italian study has provided what researchers believe is the first observational evidence that our universe could be a vast and complex hologram. (2017-01-30)

The route to high temperature superconductivity goes through the flat land
Researchers at Aalto University have discovered that energy saving superconductors may be possible if the counterintuitive properties of electrons moving in 'flat bands' are exploited. (2015-11-20)

Quantum RAM: Modelling the big questions with the very small
When it comes to studying transportation systems, stock markets and the weather, quantum mechanics is probably the last thing to come to mind. However, scientists at Australia's Griffith University and Singapore's Nanyang Technological University have just performed a 'proof of principle' experiment showing that when it comes to simulating such complex processes in the macroscopic world quantum mechanics can provide an unexpected advantage. (2017-02-03)

Turning down the noise in quantum data storage
Tripling the steps in a read cycle can significantly improve signal to noise ratios in quantum data storage. (2010-01-19)

How to cut your lawn for grasshoppers
Picture a grasshopper landing randomly on a lawn of fixed area. If it then jumps a certain distance in a random direction, what shape should the lawn be to maximize the chance that the grasshopper stays on the lawn after jumping? (2017-11-21)

Experimentally demonstrated a toffoli gate in a semiconductor three-qubit system
A new progress in the scaling of semiconductor quantum dot based qubit has been achieved at Key Laboratory of Quantum Information and Synergetic Innovation Center of Quantum Information & Quantum Physics of USTC. (2018-02-27)

Review of the synthetic techniques and applications of QDs/GR composites
Recent research published in a paper in NANO by a group of researchers from Yunnan University investigates the recent research progress on QDs/GR composites with focus on their industrial preparation and commercial applications. The selection of the appropriate synthetic method is highly dependent on the applying requirements of QDs/GR composites. (2018-06-20)

Call for green burial corridors alongside roads, railways and country footpaths
A leading public health expert is calling for a strategic initiative to develop green burial corridors alongside major transport routes because British graveyards and cemeteries are rapidly running out of room. With 500,000 deaths annually in England and Wales, it is likely that there will be no burial space left within five years. (2019-07-04)

Physicists have let light through the plane of the world's thinnest semiconductor crystal
An international research team has studied how photons travel in the plane of the world's thinnest semiconductor crystal. The results of the physicists' work open the way to the creation of monoatomic optical transistors - components for quantum computers, potentially capable of making calculations at the speed of light. (2019-07-23)

Quantum cats are hard to see
Researchers from the universities of Calgary and Waterloo in Canada and the University of Geneva in Switzerland have published a paper this week in Physical Review Letters explaining why we don't usually see the physical effects of quantum mechanics. (2011-12-16)

Quantum physicist Carl M. Bender wins 2017 Dannie Heineman Prize for Mathematical Physics
The American Institute of Physics (AIP) and the American Physical Society (APS) announced today, on behalf of the Heineman Foundation for Research, Educational, Charitable, and Scientific Purposes, that Carl M. Bender of Washington University in St. Louis is the recipient of the 2017 Dannie Heineman Prize for Mathematical Physics, which is awarded annually to honor significant contributions to the field. (2016-10-13)

Seeing two figures in coordinated action helps brain pick out movements of one
A new study by UC Berkeley vision scientists finds that the human visual system is better able to discriminate the movements of a single person when his or her actions are coordinated in a meaningful way with a second individual. This is especially important when the view is somehow obscured, providing insight into how accurately we can interpret what we see from grainy security cameras. (2006-09-07)

New derivation of pi links quantum physics and pure math
In 1655 the English mathematician John Wallis published a book in which he derived a formula for pi as the product of an infinite series of ratios. Now researchers from the University of Rochester, in a surprise discovery, have found the same formula in quantum mechanical calculations of the energy levels of a hydrogen atom. The researchers report their findings in the Journal of Mathematical Physics. (2015-11-10)

Researchers demonstrate size quantization of Dirac fermions in graphene
In a recent joint experimental and theoretical work, an international group of physicists demonstrated size quantization of charge carriers, i.e. quantized conductance in nanoscale samples of graphene. The results have been published in an article called 'Size quantization of Dirac fermions in graphene constrictions' in Nature Communications. (2016-05-20)

Look! Something shiny! How some textbook visuals can hurt learning
Adding captivating visuals to a textbook lesson to attract children's interest may sometimes make it harder for them to learn, a new study suggests. (2013-05-08)

UNM physicist discovers strange forces acting on nanoparticles
A new scientific paper published, in part, by a University of New Mexico physicist is shedding light on a strange force impacting particles at the smallest level of the material world. (2017-04-07)

Page 25 of 25 | 1000 Results
   First   Previous   Next      Last   
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.