Physics – Page 7 – PossibleThreat Articles

Physicists couple key components of quantum technologies

October 9, 2019 0 Comments Computers and Internet, encryption, Optics, Physics, Quantum Computers, Quantum Computing, Quantum Physics, Spintronics Research

Researchers are engaged in intensive work on the components of quantum technologies – these include circuits processing information using single photons instead of electricity, as well as light sources producing such quanta of light. Coupling these components to produce integrated quantum optical circuits on chips presents a challenge. Researchers have developed an interface that couples light sources for single photons with nanophotonic networks consisting of photonic crystals which can be replicated by using established nanofabrication processes.

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Scientists observe a single quantum vibration under ordinary conditions

October 8, 2019 0 Comments Computers and Internet, Graphene, Hacking, Physics, Quantum Computers, Quantum Computing, Quantum Physics, Spintronics Research

Scientists have for the first time created and observed a single phonon in a common material at room temperature.

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Cooling nanotube resonators with electrons

October 8, 2019 0 Comments Computers and Internet, Hacking, Physics, Quantum Computers, Quantum Computing, Quantum Physics, Spintronics, Spintronics Research

Researchers report on a technique that uses electron transport to cool a nanomechanical resonator near the quantum regime.

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A close up on the real world: Atomic migration under ambient conditions

October 8, 2019 0 Comments Chemistry, Consumer Electronics, Electricity, Engineering and Construction, Graphene, Materials Science, Physics, Spintronics

Researchers have reported an environmental transmission electron microscopy technique that has allowed in situ visualization of the atomic changes of a metal surface in an electric field under ambient conditions. The activation of oxygen gas molecules by electron tunneling was found to result in atomic migration that could be followed progressively. It is hoped that the tunneling-electron-attached-gas process will provide valuable insight for the development of nanoparticle catalyst and quantum material applications.

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A simple way to control swarming molecular machines

October 8, 2019 0 Comments Biochemistry, Civil Engineering, Energy Technology, Engineering and Construction, Materials Science, Nanotechnology, Physics, Thermodynamics

The swarming behavior of about 100 million molecular machines can be controlled by applying simple mechanical stimuli such as extension and contraction. This method could lead to the development of new swarming molecular machines and small energy-saving devices.

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Novel, high-performance diodes and transistors

October 8, 2019 0 Comments Civil Engineering, Energy Technology, Graphene, Materials Science, Petroleum, Physics, Spintronics, Thermodynamics

Today's computer processors are increasingly pushed to their limits due to their physical properties. Novel materials could be the solution. Physicists have investigated if and how these materials might be developed. They have created, tested and filed a patent for a concept that utilizes the latest findings from the field of spintronics.

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The story of thalidomide continues

October 8, 2019 0 Comments Biochemistry, Cancer, Colon Cancer, Leukemia, Medical Technology, Nanotechnology, Pharmacology, Physics

An international study has unveiled a detailed view of how thalidomide, one of the most notorious drugs ever developed, causes abnormalities in limb and ear development. The findings may contribute to the re-emergence of safe, or non-teratogenic, thalidomide-derived drugs as a treatment for cancer and inflammatory diseases.

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Rare 'Lazarus superconductivity' observed in promising, rediscovered material

October 8, 2019 0 Comments Computers and Internet, encryption, Hacking, Materials Science, Nuclear Energy, Physics, Spintronics, Spintronics Research

A team of researchers has observed a rare phenomenon called re-entrant superconductivity in the material uranium ditelluride. Nicknamed 'Lazarus superconductivity,' the phenomenon occurs when a superconducting state arises, breaks down, then re-emerges in a material due to a change in a specific parameter — in this case, the application of a very strong magnetic field. The discovery furthers the case for uranium ditelluride as a promising material for use in quantum computers.

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Forward or backward? New pathways for protons in water or methanol

October 8, 2019 0 Comments Biochemistry, Chemistry, Energy and Resources, Fuel Cells, Inorganic Chemistry, Nature of Water, Organic Chemistry, Physics

A collaborative ultrafast spectroscopy and ab initio molecular dynamics simulations study shows that proton vacancies in the form of hydroxide/methoxide ions are as relevant for proton transfer between acids and bases as hydrated excess protons, thus pointing for a clear demand for refinement of the microscopic picture for aqueous proton transport – in solution as well as in hydrogen fuel cells or transmembrane proteins – away from currently often assumed dominant role of hydrated excess protons.

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2019 Nobel Prize in Physics: Evolution of the universe and discovery of exoplanet orbiting solar-type star

October 8, 2019 0 Comments Astrophysics, Big Bang, Chemistry, Cosmology, Extrasolar Planets, Physics, Quantum Physics, Solar Energy

This year's Nobel Prize in Physics is being awarded "for contributions to our understanding of the evolution of the universe and Earth's place in the cosmos," with one half to James Peebles "for theoretical discoveries in physical cosmology" and the other half jointly to Michel Mayor and Didier Queloz "for the discovery of an exoplanet orbiting a solar-type star."