Quantum

New Imaging Technology Captures Movement Of Quantum Particles With Unprecedented Resolution

Excitons—electrically neutral quasiparticles—have extraordinary properties. They exist only in semiconducting and insulating materials and can be easily accessed in two-dimensional (2D) materials just a few atoms thick, such as carbon and...
Related topics: Physics

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Observation Of Quantized Heating In Quantum Matter

Shaking a physical system typically heats it up, in the sense that the system continuously absorbs energy. When considering a circular shaking pattern, the amount of energy that is absorbed can potentially depend on the orientation of the circular...
Related topics: Physics

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Sound Waves Let Quantum Systems 'talk' To One Another

Researchers at the University of Chicago and Argonne National Laboratory have invented an innovative way for different types of quantum technology to "talk" to each other using sound. The study, published Feb. 11 in Nature Physics, is an important...
Related topics: Physics

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Implementing A Practical Quantum Secure Direct Communication System

Quantum secure direct communication (QSDC) is an important branch of quantum communication, based on the principles of quantum mechanics for the direct transmission of classified information. While recent proof-of-principle experimental studies have...
Related topics: Physics

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Laser Pulses Light The Way To Tuning Topological Materials For Spintronics And Quantum Computing

Scientists at the U.S. Department of Energy's Ames Laboratory have discovered a means of controlling the surface conductivity of a three-dimensional (3-D) topological insulator, a type of material that has potential applications in spintronic...
Related topics: Laser, Physics, Scientific Discoveries

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Tracking Pollen With Quantum Dots

Most plant species on earth are reliant on insects for pollination, including more than 30% of the food crops we eat. With insects facing rapid global decline, it is crucial that scientists understand which insects are important pollinators of...
Related topics: Physics

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High-performance Quantum Dot Mode-locked Laser On Silicon

Ten years into the future. That's about how far an electrical and computer engineering professor and his research team are reaching with the recent development of their mode-locked quantum dot lasers on silicon. It's technology that not only can...
Related topics: Physics, Laser

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Ornl Teams With Los Alamos, Epb To Demonstrate Next-generation Grid Security Tech

A team of researchers from the Department of Energy's Oak Ridge and Los Alamos National Laboratories has partnered with EPB, a Chattanooga utility and telecommunications company, to demonstrate the effectiveness of metro-scale quantum key...
Related topics: Physics

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Questions In Quantum Computing: How To Move Electrons With Light

To design future quantum technologies, scientists pinpoint how microwaves interact with matter.
Related topics: Physics, Electrons, Microwaves

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Quantum Strangeness Gives Rise To New Electronics

Today, a new breed of electronic devices, bearing unique properties, is being developed. As ultra-miniaturization continues apace, researchers have begun to explore the intersection of physical and chemical properties occurring at the molecular...
Related topics: Physics

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Engineers Develop Room Temperature, Two-dimensional Platform For Quantum Technology

Quantum computers promise to be a revolutionary technology because their elementary building blocks, qubits, can hold more information than the binary, 0-or-1 bits of classical computers. But to harness this capability, hardware must be developed...
Related topics: Physics, Qubits

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Scientists Image Conducting Edges In A Promising 2d Material

Researchers have directly imaged 'edge conduction' in monolayer tungsten ditelluride, a newly discovered 2D topological insulator and quantum material. The research makes it possible to exploit this edge conduction feature to build more...
Related topics: Scientific Discoveries, Physics

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Life On The Edge In The Quantum World

Pulling off high-speed energy transfers in the lab gives researchers insight into quantum computing, high-speed rechargeable batteries, and other future applications of quantum technology.
Related topics: Physics

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Are Birds Using Quantum Entanglement To Navigate?

Birds' navigation using Earth's very faint magnetic fields suggests an incredible level of sensitivity. There's reason to think that sensitivity may be based on quantum entanglement in cryptochrome in their eyes. Identifying the role of quantum...
Related topics: Physics

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New Phenomenon Discovered That Fixes A Common Problem In Lasers: Wavelength Splitting

Physicists have discovered how to fix a major problem that occurs in lasers made from a new type of material called quantum dots. The never-before-seen phenomenon will be important for an emerging field of photonics research, including one day...
Related topics: Scientific Discoveries, Laser, Physics

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A Circuit Platform Made Of Strongly Interacting Microwave Photons

A team of researchers at the University of Chicago has developed a circuit platform for the exploration of quantum matter made of strongly interacting microwave photons. In their paper published in the journal Nature, the group outlines their...
Related topics: Microwaves, Physics

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Controllable Electron Flow In Quantum Wires

Scientist have found they can turn on and off the flow of current in a bismuth crystal subjected to a high magnetic field, making a new type of controllable quantum wire.
Related topics: Electrons, Physics

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Theoretical Model May Help Solve Molecular Mystery

Spintronics is promising for future low-power electronic devices. Spin is a quantum-mechanical property of electrons that can best be imagined as electrons spinning around their own axes, causing them to behave like small compass needles. A current...
Related topics: Physics, Electrons

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Physicists Uncover The Topological Origin Of Surface Electromagnetic Waves

In work that provides insights for several areas of wave physics -- Maxwell electromagnetism, topological quantum states, and plasmonics/metamaterials -- scientists showed that the well-known surface electromagnetic waves at interfaces between...
Related topics: Physics

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Researchers Determine The Performance Of Multi-dimensional Bits

What kinds of computers would be conceivable if physics worked differently? Quantum physicists Marius Krumm from the University of Vienna and Markus Müller from the Viennese Institute of Quantum Optics and Quantum Information of the Austrian...
Related topics: Physics

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