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Categories: Physics: Quantum Computing

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Computer Science: Quantum Computers Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Quantum breakthrough when light makes materials magnetic      (via sciencedaily.com)     Original source 

The potential of quantum technology is huge but is today largely limited to the extremely cold environments of laboratories. Now, researchers have succeeded in demonstrating for the very first time how laser light can induce quantum behavior at room temperature -- and make non-magnetic materials magnetic. The breakthrough is expected to pave the way for faster and more energy-efficient computers, information transfer and data storage.

Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

New method of measuring qubits promises ease of scalability in a microscopic package      (via sciencedaily.com)     Original source 

The path to quantum supremacy is made challenging by the issues associated with scaling up the number of qubits. One key problem is the way that qubits are measured. A research group introduces a new approach that tackles these challenges head-on using nanobolometers instead of traditional, bulky parametric amplifiers.

Computer Science: Quantum Computers Engineering: Graphene Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

New technique lets scientists create resistance-free electron channels      (via sciencedaily.com)     Original source 

A team has taken the first atomic-resolution images and demonstrated electrical control of a chiral interface state -- an exotic quantum phenomenon that could help researchers advance quantum computing and energy-efficient electronics.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics Space: Astrophysics Space: General Space: Structures and Features
Published

Chemical reactions can scramble quantum information as well as black holes      (via sciencedaily.com)     Original source 

A team of researchers has shown that molecules can be as formidable at scrambling quantum information as black holes by combining mathematical tools from black hole physics and chemical physics and testing their theory in chemical reactions.

Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Progress in quantum physics: Researchers tame superconductors      (via sciencedaily.com)     Original source 

An international team including researchers from the University of W rzburg has succeeded in creating a special state of superconductivity. This discovery could advance the development of quantum computers.

Energy: Nuclear Engineering: Nanotechnology Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Researchers discover 'neutronic molecules'      (via sciencedaily.com)     Original source 

Researchers have discovered 'neutronic' molecules, in which neutrons can be made to cling to quantum dots, held just by the strong force. The finding may lead to new tools for probing material properties at the quantum level and exploring new kinds of quantum information processing devices.

Chemistry: Inorganic Chemistry Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Researchers visualize quantum effects in electron waves      (via sciencedaily.com)     Original source 

One of the most fundamental interactions in physics is that of electrons and light. In an experiment, scientists have now managed to observe what is known as the Kapitza-Dirac effect for the first time in full temporal resolution. This effect was first postulated over 90 years ago, but only now are its finest details coming to light.

Chemistry: Thermodynamics Environmental: General Geoscience: Environmental Issues Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Sunrise to sunset, new window coating blocks heat -- not view      (via sciencedaily.com)     Original source 

Windows welcome light into interior spaces, but they also bring in unwanted heat. A new window coating blocks heat-generating ultraviolet and infrared light and lets through visible light, regardless of the sun's angle. The coating can be incorporated onto existing windows or automobiles and can reduce air-conditioning cooling costs by more than one-third in hot climates.

Computer Science: Encryption Computer Science: General Computer Science: Quantum Computers Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

100 kilometers of quantum-encrypted transfer      (via sciencedaily.com)     Original source 

Researchers have taken a big step towards securing information against hacking. They have succeeded in using quantum encryption to securely transfer information 100 kilometers via fiber optic cable -- roughly equivalent to the distance between Oxford and London.

Chemistry: Biochemistry Energy: Technology Engineering: Nanotechnology Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Researchers discover dual topological phases in an intrinsic monolayer crystal      (via sciencedaily.com)     Original source 

An international team working with single-atom thick crystals found TaIrTe4's transition between the two distinct topological states of insulation and conduction. The material exhibited zero electrical conductivity within its interior, while its boundaries remain conductive. The team's investigation determined that the two topological states stem from disparate origins. The novel properties can serve as a promising platform for exploring exotic quantum phases and electromagnetism.

Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Magnetic avalanche triggered by quantum effects      (via sciencedaily.com)     Original source 

Scientists have shown that Barkhausen noise can be produced not only through traditional, or classical means, but through quantum mechanical effects. The research represents an advance in fundamental physics and could one day have applications in creating quantum sensors and other electronic devices.

Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

A new type of cooling for quantum simulators      (via sciencedaily.com)     Original source 

Quantum simulators are quantum systems that can be controlled exceptionally well. They can be used to indirectly learn something about other quantum systems, which cannot be experimented on so easily. Therefore, quantum simulators play an important role in unraveling the big questions of quantum physics. However, they are limited by temperature: They only work well, when they are extremely cold. Scientists have now developed a method to cool quantum simulators even more than before: by splitting a Bose-Einstein-condensate in half, in a very special way.

Computer Science: Quantum Computers Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Bullseye! Accurately centering quantum dots within photonic chips      (via sciencedaily.com)     Original source 

Researchers have now developed standards and calibrations for optical microscopes that allow quantum dots to be aligned with the center of a photonic component to within an error of 10 to 20 nanometers (about one-thousandth the thickness of a sheet of paper). Such alignment is critical for chip-scale devices that employ the radiation emitted by quantum dots to store and transmit quantum information.

Geoscience: Earth Science Offbeat: Earth and Climate Offbeat: General Offbeat: Space Physics: General Physics: Quantum Computing Physics: Quantum Physics Space: Astrophysics Space: Exploration Space: General Space: The Solar System
Published

Scientists on the hunt for evidence of quantum gravity's existence at the South Pole      (via sciencedaily.com)     Original source 

An Antarctic large-scale experiment is striving to find out if gravity also exists at the quantum level. An extraordinary particle able to travel undisturbed through space seems to hold the answer.

Chemistry: General Computer Science: General Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Scientists deliver quantum algorithm to develop new materials and chemistry      (via sciencedaily.com)     Original source 

Scientists published the Cascaded Variational Quantum Eigensolver (CVQE) algorithm in a recent article, expected to become a powerful tool to investigate the physical properties in electronic systems.

Chemistry: General Computer Science: General Computer Science: Quantum Computers Offbeat: Computers and Math Offbeat: General Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

The world is one step closer to secure quantum communication on a global scale      (via sciencedaily.com)     Original source 

Researchers have brought together two Nobel prize-winning research concepts to advance the field of quantum communication. Scientists can now efficiently produce nearly perfect entangled photon pairs from quantum dot sources.

Computer Science: Quantum Computers Engineering: Graphene Engineering: Nanotechnology Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Quantum interference could lead to smaller, faster, and more energy-efficient transistors      (via sciencedaily.com)     Original source 

Scientists made a single-molecule transistor using quantum interference to control electron flow. This new design offers high on/off ratio and stability, potentially leading to smaller, faster, and more energy-efficient devices. Quantum interference also improves the transistor's sensitivity to voltage changes, further boosting its efficiency.

Chemistry: General Chemistry: Inorganic Chemistry Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Cleaning up environmental contaminants with quantum dot technology      (via sciencedaily.com)     Original source 

The 2023 Nobel Prize in Chemistry was focused on quantum dots -- objects so tiny, they're controlled by the strange rules of quantum physics. Quantum dots used in electronics are often toxic, but their nontoxic counterparts are being explored for uses in medicine and in the environment, including water decontamination. One team of researchers has specially designed carbon- and sulfur-based dots for these environmental applications.

Computer Science: General Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Quantum talk with magnetic disks      (via sciencedaily.com)     Original source 

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 quantum networks is equally crucial in materializing the potential of this new technology. Addressing this need, a research team is now introducing a new approach for transducing quantum information: the team has manipulated quantum bits, so called qubits, by harnessing the magnetic field of magnons -- wave-like excitations in a magnetic material -- that occur within microscopic magnetic disks.