Popular Quantum Information News and Current Events

Popular Quantum Information News and Current Events, Quantum Information News Articles.
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X-ray imaging with a significantly enhanced resolution
Physicists from Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Deutsches Elektronen-Synchrotron (DESY, Hamburg) have come up with a method that could significantly improve the quality of X-ray images in comparison to conventional methods. Incoherent diffractive imaging (IDI) could help to image individual atoms in nanocrystals or molecules faster and with a much higher resolution. (2017-08-14)

Speed of light: Toward a future quantum internet
University of Toronto Engineering researchers have demonstrated proof-of-principle for a device that could serve as the backbone of a future quantum Internet. U of T professor Hoi-Kwong Lo and his collaborators have developed a prototype for a key element for all-photonic quantum repeaters, a critical step in long-distance quantum communication. (2019-01-28)

Cooling by laser beam
A laser pulse that for a few picoseconds transforms a material into a high-temperature superconductor. Different experiments have unveiled this interesting phenomenon, with potential applicative implications. Research carried out by SISSA scientists a year ago had already provided several basic principles of the phenomenon. A new study published on (2018-06-08)

A look into the fourth dimension
In our daily experience space has three dimensions. Recently, however, a physical phenomenon that only occurs in four spatial dimensions could be observed in two experiments. The theoretical groundwork for those experiments was laid by an ETH researcher. (2018-01-04)

New quantum system could help design better spintronics
Researchers have created a new testing ground for quantum systems in which they can literally turn certain particle interactions on and off, potentially paving the way for advances in spintronics. (2019-01-29)

Beyond Einstein
Theoretical physicists have been questioning if black hole singularities exist through complex mathematical equations over the past several decades with little success until now. LSU Department of Physics & Astronomy Associate Professor Parampreet Singh and collaborators LSU Postdoctoral Researcher Javier Olmedo and Abhay Ashtekar, the Eberly Professor of Physics at Penn State developed new mathematical equations that go beyond Einstein's theory of general relativity overcoming its key limitation -- the central singularity of black holes. (2018-12-20)

Quantum momentum
Occasionally we come across a problem in classical mechanics that poses particular difficulties for translation into the quantum world. A new mathematical model published in EPJ D has provided some insights into one of them: momentum. The model uses another classical concept, that of time-of-flight. (2019-08-07)

New device could help answer fundamental questions about quantum physics
Researchers have developed a new device that can measure and control a nanoparticle trapped in a laser beam with unprecedented sensitivity. (2018-12-13)

Spying on topology
Topological insulators are quantum materials, which, due to their exotic electronic structure, on surfaces and edges conduct electric current like metal, while acting as an insulator in bulk. Scientists from the Max-Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI) have demonstrated for the first time how to tell apart topological materials from their regular -- trivial -- counterparts within a millionth of a billionth of a second by probing it with ultra-fast laser light. (2019-10-02)

NUS scientist develops 'toolboxes' for quantum cybersecurity
A quantum information scientist from the National University of Singapore has developed efficient 'toolboxes' comprising theoretical tools and protocols for quantifying the security of high-speed quantum communication. (2017-12-08)

Virginia Tech researchers lead breakthrough in quantum computing
A team of Virginia Tech chemistry and physics researchers have advanced quantum simulation by devising an algorithm that can more efficiently calculate the properties of molecules on a noisy quantum computer. (2019-07-25)

Optical magnetic field sensor can detect signals from the nervous system
The human body is controlled by electrical impulses in the brain, the heart and nervous system. These electrical signals create tiny magnetic fields, which doctors could use to diagnose various diseases, for example diseases of the brain or heart problems in young fetuses. Researchers from the Niels Bohr Institute have now succeeded in developing a method for extremely precise measurements of such ultra-small magnetic fields with an optical magnetic field sensor. The results are published in the scientific journal, Scientific Reports. (2016-07-15)

Finding Majoranas
Nano-'hashtags' could be the key to generating the highly sought Majorana quasiparticle. (2017-11-16)

Army project brings quantum internet closer to reality
A US Army research result brings the quantum internet a step closer. Such an internet could offer the military security, sensing and timekeeping capabilities not possible with traditional networking approaches. (2019-09-26)

UNIST researchers develop silicon chip-based quantum photonic devices
An international team of researchers, affiliated with South Korea's Ulsan National Institute of Science and Technology (UNIST) has presented a core technology for quantum photonic devices used in quantum information processing. Their work has been published in the November issue of the prestigious journal, Nano Letters. (2017-12-12)

Controlling quantum interactions in a single material
By demonstrating that multiple quantum interactions can coexist and be controlled in a single material, researchers open the door for ultrafast, low-power electronics and quantum computers. (2018-02-05)

Researchers achieve multifunctional solid-state quantum memory
Research team from CAS Key Lab of Quantum Information developed multi-degree-of-freedom multiplexed solid-state quantum memory and demonstrate photon pulse operation functions with time and frequency degree-of-freedoms. (2018-08-24)

A novel test bed for non-equilibrium many-body physics
The behavior of electrons in a material is typically difficult to predict. Novel insight comes now from experiments and simulations performed by a team led by ETH physicists who have studied electronic transport properties in a one-dimensional quantum wire containing a mesoscopic lattice. (2018-03-30)

Scientific education through films?
Magic swords, wands, cauldrons and cloaks of invisibility do not exist in reality. In contrast, it is possible that scenarios like crashed aircrafts looming out of the mists of an alien planet, patients being snatched from the jaws of death by a risky medical breakthrough, or smug murderers who are betrayed by a few molecules left at the scene of crime are part of our current or future reality. (2016-01-28)

Faster than allowed by quantum computing?
Quantum computers are more powerful than classical computers since they work with coherent ''quantum bits'' instead of ordinary zeroes and ones. But could there be even more efficient ''science fiction computers''? Researchers from the Austrian Academy of Sciences and the University of Vienna have now shown that this is not possible. (2019-02-01)

A step closer to quantum computers: NUS researchers show how to directly observe quantum spin effects
A team led by Associate Professor Yang Hyunsoo from the National University of Singapore Faculty of Engineering has found a practical way to observe and examine the quantum effects of electrons in topological insulators and heavy metals. This could later pave the way for the development of advanced quantum computing components and devices. (2018-07-16)

Electron behavior under extreme conditions described for the first time
Researchers have modeled the actions of electrons under extreme temperatures and densities, such as those found within planets and stars. (2017-10-06)

The ultimate green technology
Imagine patterning and visualizing silicon at the atomic level, something which, if done successfully, will revolutionize the quantum and classical computing industry. A team of scientists in Edmonton, Canada has done just that, led by a world-renowned physicist and his up-and-coming protégé. (2017-02-13)

Optical tweezers steer a chemical reaction from just 2 atoms
Highlighting the fine level of control modern chemists possess, researchers have trapped two single atoms -- sodium and cesium -- in separate 'optical tweezers' and then maneuvered them together, resulting in a single molecule of sodium cesium (NaCs) with unique properties. (2018-04-12)

Exploring the realistic nature of the wave function in quantum mechanics
The wave function is central in quantum mechanics and describes the quantum state of microscopic objects. But what the wave function essentially represents is still in debate. Now researchers in Tsinghua University proposed and experimentally realized an encounter-delay-choice experiment to demonstrate the realistic interpretation for the wave function. This will be helpful to unlock the mysteries of the wave function, and deepen our understanding of quantum mechanics. (2018-01-04)

Novel thermal phases of topological quantum matter in the lab
A quantum simulation of topological phases of matter at finite temperature has be realized for the first time by a group of researchers from Universidad Complutense, IBM, ETH Zurich, MIT and Harvard University. These findings open the door to unexpected applications in robust quantum technologies against thermal fluctuations such as quantum computers or memories. (2018-04-17)

Diamonds coupled using quantum physics
Researchers at TU Wien have succeeded in coupling the specific defects in two such diamonds with one another. This is an important prerequisite for the development of new applications, such as highly sensitive sensors and switches for quantum computers. (2017-04-10)

NMRCloudQ: A quantum cloud experience on a nuclear magnetic resonance quantum computer
Cloud-based quantum computing is the most useful form for public users to experience with the power of quantum. Recently, a joint team led by G. Long at Tsinghua University, B. Zeng at University of Guelph and D. Lu at SUSTech launched a new cloud quantum computing service-NMRCloudQ which is based on 4-qubit nuclear magnetic resonance and aims to be freely accessible to either amateurs that keep pace with quantum era or professionals that want explore quantum phenomena. (2018-01-19)

New method of characterizing graphene
Scientists have developed a new method of characterizing graphene's properties without applying disruptive electrical contacts, allowing them to investigate both the resistance and quantum capacitance of graphene and other two-dimensional materials. Researchers from the Swiss Nanoscience Institute and the University of Basel's Department of Physics reported their findings in the journal Physical Review Applied. (2017-05-30)

New math bridges holography and twistor theory
A new perspective bridges two approaches to understanding quantum gravity. (2018-03-29)

Superconductivity can induce magnetism
Researchers from the Université de Montréal, the Paul Scherrer Institute, the Swiss Federal Institute of Technology Zurich, and the Los Alamos National Laboratory publish their results in the prestigious journal Science. (2008-09-11)

Physics, photosynthesis and solar cells
A University of California, Riverside assistant professor has combined photosynthesis and physics to make a key discovery that could help make solar cells more efficient. The findings were recently published in the journal Nano Letters. (2016-11-30)

Researchers bring high res magnetic resonance imaging to nanometer scale
A new technique that brings magnetic resonance imaging to the nanometer scale with unprecedented resolution will open the door for major advances in understanding new materials, virus particles and proteins that cause diseases like Parkinson's and Alzheimer's. (2018-02-21)

Quantum dots display promise for polymers
Rice University scientists employ the power of the sun to build functional synthetic polymers using photosensitive, semiconducting quantum dots as a catalyst. (2018-02-08)

Pressing the accelerator on quantum robotics
Quantum computing will allow for the creation of powerful computers, but also much smarter and more creative robots than conventional ones. This was the conclusion arrived at by researchers from Spain and Austria, who have confirmed that quantum tools help robots learn and respond much faster to the stimuli around them. (2014-10-06)

Researchers unveil high-sensitivity 3-D technique using single-atom measurements
Researchers at Griffith University working with Australia's Commonwealth Scientific and Industrial Research Organisation (CSIRO) have unveiled a stunningly accurate technique for scientific measurements which uses a single atom as the sensor, with sensitivity down to 100 zeptoNewtons. (2018-03-23)

2D topological physics from shaking a 1D wire
Published in Physical Review X, this new study propose a realistic scheme to observe a 'cold-atomic quantum Hall effect.' (2019-10-03)

A new Bose-Einstein condensate created at Aalto University
Researchers at Aalto University, Finland are the first to create a Bose-Einstein condensate of light coupled with metal electrons, so-called surface plasmon polaritons. (2018-04-16)

Quantum chemistry on quantum computers
A new quantum algorithm has been implemented for quantum chemical calculations on quantum computers to predict complex chemical reactions without exponential/combinatorial explosion, giving exact solutions of Schroedinger Equations for chemistry, for the first time. (2019-01-02)

Carbon nanotubes outperform copper nanowires as interconnects
Researchers at Rensselaer Polytechnic Institute have created a road map that brings academia and the semiconductor industry one step closer to realizing carbon nanotube interconnects, and alleviating the current bottleneck of information flow that is limiting the potential of computer chips in everything from personal computers to portable music players. (2008-03-13)

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