Using quantum Parrondo"s random walks for encryption
Assistant Professor Kang Hao Cheong and his research team from the Singapore University of Technology and Design (SUTD) have set out to apply concepts from quantum Parrondo's paradox in search of a working protocol for semiclassical encryption. In a.....»»
Team is first ever to measure qubits with ultrasensitive thermal detectors, evading Heisenberg uncertainty principle
Chasing ever-higher qubit counts in near-term quantum computers constantly demands new feats of engineering......»»
New technique lets scientists create resistance-free electron channels
An international research team led by Lawrence Berkeley National Laboratory (Berkeley Lab) has taken the first atomic-resolution images and demonstrated electrical control of a chiral interface state—an exotic quantum phenomenon that could help res.....»»
Quantum entanglement in quasiparticles: A stealth mode against disorder
Physicists at Julius-Maximilians-Universität Würzburg (JMU) have made a discovery that could boost the understanding of the role of entanglement in high-temperature copper oxide superconductors. The low-energy quasiparticles of these enigmatic quan.....»»
Computing how quantum states overlap
Quantum many-body systems are things such as atomic nuclei that consist of many tiny particles moving in complex ways. This makes it extremely difficult to predict how the systems behave as the particles interact. To study these systems, researchers.....»»
Magnetic levitation: New material offers potential for unlocking gravity-free technology
Researchers at the Quantum Machines Unit at the Okinawa Institute of Science and Technology (OIST) are studying levitating materials—substances that can remain suspended in a stable position without any physical contact or mechanical support......»»
Scientists investigate information propagation in interacting bosonic systems
A new study by scientists from Japan explores the propagation of quantum information within interacting boson systems like Bose-Einstein condensates (BECs), revealing the potential for accelerated transmission unlike previously thought......»»
Nonvolatile quantum memory: Discovery points path to flash-like memory for storing qubits
Rice University physicists have discovered a phase-changing quantum material—and a method for finding more like it—that could potentially be used to create flash-like memory capable of storing quantum bits of information, or qubits, even when a q.....»»
Chemical reactions can scramble quantum information as well as black holes
If you were to throw a message in a bottle into a black hole, all of the information in it, down to the quantum level, would become completely scrambled. Because in black holes this scrambling happens as quickly and thoroughly as quantum mechanics al.....»»
Simulating magnetization in a Heisenberg quantum spin chain
The rapid progress of quantum simulators is now enabling them to study problems that before have been limited to the domain of theoretical physics and numerical simulation. A team of researchers at Google Quantum AI and their collaborators showed thi.....»»
"It"s ultimately about predicting everything"—theory could be a map in the hunt for quantum materials
A breakthrough in theoretical physics is an important step toward predicting the behavior of the fundamental matter of which our world is built. It can be used to calculate systems of enormous quantities of quantum particles, a feat thought impossibl.....»»
New focused approach can help untangle messy quantum scrambling problems
The world is a cluttered, noisy place, and the ability to effectively focus is a valuable skill. For example, at a bustling party, the clatter of cutlery, the conversations, the music, the scratching of your shirt tag and almost everything else must.....»»
Quantum error correction used to actually correct errors
Microsoft and Quantinuum correct problems when entangling pairs of qubits. Enlarge / Quantinuum's H2 "racetrack" quantum processor. (credit: Quantinuum) Today's quantum computing hardware is severely limited in what it c.....»»
Everything you need to know about random access memory
Everything you need to know about random access memory.....»»
Study reports that age is the driving force in changing how stars move within galaxies
Galaxies start life with their stars rotating in an orderly pattern but in some the motion of stars is more random. Until now, scientists have been uncertain about what causes this—possibly the surrounding environment or the mass of the galaxy itse.....»»
Classical optical neural network exhibits "quantum speedup"
In recent years, artificial intelligence technologies, especially machine learning algorithms, have made great strides. These technologies have enabled unprecedented efficiency in tasks such as image recognition, natural language generation and proce.....»»
A single photon emitter deterministically coupled to a topological corner state
Exploring cavity quantum electrodynamics (cQED) is pivotal for advancing quantum technology and unraveling the fundamental intricacies of light-matter interactions. A prevalent strategy involves integrating a single quantum emitter into photonic micr.....»»
100 kilometers of quantum-encrypted transfer
Researchers at DTU have successfully distributed a quantum-secure key using a method called continuous variable quantum key distribution (CV QKD). The researchers have managed to make the method work over a record 100 km distance—the longest distan.....»»
Researchers discover dual topological phases in an intrinsic monolayer crystal
Dual topological phases have been discovered in an intrinsic monolayer crystal, a finding that reveals new and unique rule-bending properties in a quantum material, an international team of scientists led by Boston College physicists reported recentl.....»»
Study unveils a new family of quantum anomalous Hall insulators
In recent years, physicists and material scientists have identified various new materials marked by interesting properties and quantum effects. These materials could prove highly valuable both as platforms to study quantum effects and for the develop.....»»
Team creates cooperative exciton-polariton condensate
Superfluorescence (SF), as a cooperative radiation effect originating from vacuum quantum fluctuations, is an ideal platform for studying many-body correlation mechanisms in an exciton ensemble, and for developing optically ultrafast techniques on br.....»»