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Quantum Physics news
A method to compute the Rényi entanglement entropy in auxiliary-field quantum Monte Carlo simulations
Entanglement is a widely studied quantum physics phenomenon, in which two particles become linked in such a way that the state of one affects the state of another, irrespective of the distance between them. When studying ...
Physicists propose new way to search for dark matter: Small-scale solution could be key to solving large-scale mystery
Ever since its discovery, dark matter has remained invisible to scientists despite the launch of multiple ultra-sensitive particle detector experiments around the world over several decades.
General Physics
19 hours ago
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A new type of cooling for quantum simulators
Quantum experiments always have to deal with the same problem, regardless of whether they involve quantum computers, quantum teleportation or new types of quantum sensors: quantum effects break down very easily. They are ...
Condensed Matter
21 hours ago
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Physicists demonstrate parity anomaly in a topological insulator
Experimental and theoretical physicists from the Würzburg Institute for Topological Insulators have observed a re-entrant quantum Hall effect in a mercury telluride device and have identified it as a signature of parity ...
Condensed Matter
Mar 26, 2024
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Scientists on the hunt for evidence of quantum gravity's existence at the South Pole
Several thousand sensors distributed over a square kilometer near the South Pole are tasked with answering one of the large outstanding questions in physics: does quantum gravity exist? The sensors monitor neutrinos—particles ...
General Physics
Mar 26, 2024
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Unlocking quantum computing power: Automated protocol design for quantum advantage
Imagine a world where complex calculations that currently take months for our best supercomputers to crack could be performed in a matter of minutes. Quantum computing is revolutionizing our digital world. In a research article ...
Quantum Physics
Mar 25, 2024
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Scientists deliver quantum algorithm to develop new materials and chemistry
U.S. Naval Research Laboratory (NRL) scientists have published the Cascaded Variational Quantum Eigensolver (CVQE) algorithm in a recent Physical Review Research article. The algorithm is expected to become a powerful tool ...
Quantum Physics
Mar 25, 2024
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Entanglement entropies of nuclear systems found to grow as the volume of those systems
Entanglement is what Einstein called "spooky action at a distance." It is a key part of what distinguishes quantum mechanics from our everyday experience. In quantum mechanics, scientists use a measurement called entanglement ...
General Physics
Mar 25, 2024
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81
The world is one step closer to secure quantum communication on a global scale
Researchers at the University of Waterloo's Institute for Quantum Computing (IQC) have brought together two Nobel prize-winning research concepts to advance the field of quantum communication.
Quantum Physics
Mar 25, 2024
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Beyond cloning: Harnessing the power of virtual quantum broadcasting
In a new study, scientists propose the concept of "virtual quantum broadcasting," which provides a workaround to the longstanding no-cloning theorem, thereby offering new possibilities for the transmission of quantum information.
Putting a new spin on 1T phase tantalum disulfide: Scientists uncover a hidden electronic state
Research often unfolds as a multistage process. The solution to one question can spark several more, inspiring scientists to reach further and look at the larger problem from several different perspectives. Such projects ...
Superconductivity
Mar 22, 2024
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Discovery of a hidden quantum critical point in two-dimensional superconductors
Weak fluctuations in superconductivity, a precursor phenomenon to superconductivity, have been successfully detected by a research group at the Tokyo Institute of Technology (Tokyo Tech). This breakthrough was achieved by ...
Superconductivity
Mar 22, 2024
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325
Study outlines spectroscopic signatures of fractionalization in octupolar quantum spin ice
Quantum spin liquids are fascinating quantum systems that have recently attracted significant research attention. These systems are characterized by a strong competition between interactions, which prevents the establishment ...
Quantum talk with magnetic disks
Quantum computers promise to tackle some of the most challenging problems facing humanity today. While much attention has been directed towards the computation of quantum information, the transduction of information within ...
Condensed Matter
Mar 20, 2024
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439
Study clarifies a key question in particle physics about muon's magnetic moment
Magnetic moment is an intrinsic property of a particle with spin, arising from interaction between the particle and a magnet or other object with a magnetic field. Like mass and electric charge, magnetic moment is one of ...
General Physics
Mar 20, 2024
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128
Quantum tornado provides gateway to understanding black holes
Scientists have for the first time created a giant quantum vortex to mimic a black hole in superfluid helium that has allowed them to see in greater detail how analog black holes behave and interact with their surroundings.
General Physics
Mar 20, 2024
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Using polarization to improve quantum imaging
Quantum imaging is a growing field that takes advantage of the counterintuitive and "spooky" ability of light particles, or photons, to become linked, or entangled, under specialized circumstances. If the state of one photon ...
Optics & Photonics
Mar 20, 2024
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A method to accurately center quantum dots within photonic chips
Devices that capture the brilliant light from millions of quantum dots, including chip-scale lasers and optical amplifiers, have made the transition from laboratory experiments to commercial products. But newer types of quantum-dot ...
Optics & Photonics
Mar 19, 2024
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233
Cracking the quantum code: Simulations track entangled quarks
Today, the word "quantum" is everywhere—in company names, movie titles, even theaters. But at its core, the concept of a quantum—the tiniest, discrete amount of something—was first developed to explain the behavior ...
Quantum Physics
Mar 19, 2024
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Quantum computers can solve combinatorial optimization problems more easily than conventional methods, research shows
The traveling salesman problem is considered a prime example of a combinatorial optimization problem. Now a Berlin team led by theoretical physicist Prof. Dr. Jens Eisert of Freie Universität Berlin and HZB has shown that ...
Quantum Physics
Mar 18, 2024
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