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Quantum Mechanics

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Science

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Cosmology, Big Bang, cosmic inflation, Three Dimensional Space, Knot Theory, Quark Gluon, quark gluon plasma

Filling the Early Universe with Knots Can Explain Why the World Is Three-Dimensional

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Filling the universe with knots shortly after it popped into existence 13.8 billion years ago provides a neat explanation for why we inhabit a three-dimensional world. That is the basic idea advanced by an out-of-the-box theory developed by an international team of physicists.

Science

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nanotechnnology, Quantum Dots, Energy

Chemical Treatment Improves Quantum Dot Lasers

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One of the secrets to making tiny laser devices such as opthalmic surgery scalpels work even more efficiently is the use of tiny semiconductor particles, called quantum dots. In new research at Los Alamos National Laboratory’s Nanotech Team, the ~nanometer-sized dots are being doctored, or “doped,” with additional electrons, a treatment that nudges the dots ever closer to producing the desired laser light with less stimulation and energy loss.

Science

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quantum materials, scanning probe microscopy, Semiconductor, Electronics, topological insulators, Spintronics, Quantum Computing, spin current, condensed matter physics, high-resolution

New Method to Detect Spin Current in Quantum Materials Unlocks Potential for Alternative Electronics

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A new method that precisely measures the mysterious behavior and magnetic properties of electrons flowing across the surface of quantum materials could open a path to next-generation electronics. A team of scientists has developed an innovative microscopy technique to detect the spin of electrons in topological insulators, a new kind of quantum material that could be used in applications such as spintronics and quantum computing.

Science

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nanotechnnology, Solar Cell Power, photovoltaic cells, photovoltaic materials, Solar energy , solar electricity, quantum behavior, Material, Semiconductor, Opto Electronics, photon science, Electrons, Solar Panels

Prototype Shows How Tiny Photodetectors Can Double Their Efficiency

UC Riverside physicists have developed a photodetector – a device that converts light into electrons – by combining two distinct inorganic materials and producing quantum mechanical processes that could revolutionize the way solar energy is collected. The researchers stacked two atomic layers of tungsten diselenide on a single atomic layer of molybdenum diselenide. Such stacking results in properties vastly different from those of the parent layers, allowing for customized electronic engineering at the tiniest possible scale.

Science

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Graphene, quasiparticles, Physics, Condensed Matter, Emergence

Columbia Researchers Observe Exotic Quantum Particle in Bilayer Graphene

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A Columbia team has definitively observed an intensely studied anomaly in condensed matter physics—the even-denominator fractional quantum Hall  state—via transport measurement in bilayer graphene. “Observing the 5/2 state in any system is a remarkable scientific opportunity, since it encompasses some of the most perplexing concepts in modern condensed matter physics, such as emergence, quasi-particle formation, quantization, and even superconductivity …[It may have] great potential for real-world applications, particularly in quantum computing.” (Science)

Medicine

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Biotechnology, nanotechnnology, Quantum Dot, Antibiotic, Infection, Salmonella, E.Coli

Light-Activated Nanoparticles Can Supercharge Current Antibiotics

Light-activated nanoparticles, also known as quantum dots, can provide a crucial boost in effectiveness for antibiotic treatments used to combat drug-resistant superbugs such as E. coli and Salmonella, new University of Colorado Boulder research shows.

Science

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Nuclear chemistry, berkelium, Quantum Mechanics, Theory Of Relativity

Breaking the Rules: Heavy Chemical Elements Alter Theory of Quantum Mechanics

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Florida State University researchers found that the theory of quantum mechanics does not adequately explain how the heaviest and rarest elements found at the end of the table function. Instead, another well-known scientific theory — Albert Einstein’s famous Theory of Relativity — helps govern the behavior of the last 21 elements of the Periodic Table.

Science

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Researchers Get First Look at Electrons Escaping Atoms

In the journal Nature Physics, researchers report taking a first step toward controlling electrons’ behavior inside matter—and thus the first step down a long and complicated road that could eventually lead to the ability to create new states of matter at will.

Science

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Attosecond Laser Pulses, Tiny Energy Harvesters, School Energy Upgrade, and More in the DOE Science News Source

Click here to go directly to the DOE Science News Source

Science

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Quantum Computer, Quantum Computing, Chemistry & Materials, Qubit, Quantum bit, quantum bits

A Quantum Computer to Tackle Fundamental Science Problems

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Two Berkeley Lab teams will receive DOE funding to develop near-term quantum computing platforms and tools to be used for scientific discovery in the chemical sciences. One team will develop novel algorithms, compiling techniques and scheduling tools, while the other team will design prototype four- and eight-qubit processors to compute these new algorithms.







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