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Symmetry has been one of the guiding principles in physicists' search for fundamental laws of nature. What does it mean that laws of nature have symmetry? It means that laws look the same before and after an operation, similar ...
General Physics
Jan 24, 2020
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3181
Mechanoluminescence (ML) is a type of luminescence induced by any mechanical action on a solid, leading to a range of applications in materials research, photonics and optics. For instance, the mechanical action can release ...
New research done at the University of the Witwatersrand in Johannesburg, South Africa, and Huazhang University of Science and Technology in Wuhan, China, has exciting implications for secure data transfer across optical ...
Quantum Physics
Jan 24, 2020
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694
Water issuing from an ordinary faucet tells a complex tale of its journey through a pipe. At high velocities, the faucet's gushing stream is turbulent: chaotic, disorderly—like the crash of ocean waves.
General Physics
Jan 24, 2020
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205
Physicists at LMU, together with colleagues at Saarland University, have successfully demonstrated the transport of an entangled state between an atom and a photon via an optic fiber over a distance of up to 20 km—thus ...
Quantum Physics
Jan 24, 2020
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592
When we cut our skin, groups of cells rush en masse to the site to heal the wound.
General Physics
Jan 24, 2020
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92
A crystal with a 3-D photonic band gap is a powerful tool to control light, with applications for new types of solar cells, sensors and miniature lasers. Inside a man-made crystal like this, a range of light wavelengths is ...
Optics & Photonics
Jan 24, 2020
0
6
Physicists have been studying superfluid 3He under nanoscale confinement for several years now, as this unique liquid presents a rich variety of phases with complex order parameters that can be stabilized. While past studies ...
Bose-condensed quantum fluids are not forever. Such states include superfluids and Bose-Einstein condensates (BECs).
Quantum Physics
Jan 23, 2020
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1293
A team from the Department of Energy's Oak Ridge National Laboratory has conducted a series of experiments to gain a better understanding of quantum mechanics and pursue advances in quantum networking and quantum computing, ...
Optics & Photonics
Jan 23, 2020
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308
An international group of scientists, including Skoltech Professor Sergey Rykovanov, has found a way to generate intense "twisted" pulses. The vortices discovered by the scientists will help investigate new materials. The ...
Optics & Photonics
Jan 23, 2020
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16
Wannier functions were first introduced by Gregory Wannier in 1937 as an alternative way of describing the electronic ground state of periodic systems. They were linked to Bloch orbitals, the standard method of describing ...
Condensed Matter
Jan 23, 2020
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6
High-temperature superconductors, materials that become superconducting at unusually high temperatures, are key components of a variety of technological tools, including MRI machines and particle accelerators. Recently, physicists ...
Scientists involved in the Borexino collaboration have presented new results for the measurement of neutrinos originating from the interior of the Earth. The elusive "ghost particles" rarely interact with matter, making their ...
General Physics
Jan 22, 2020
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891
Since 1880, the Earth's temperature has risen by 1.9 degrees Fahrenheit and is predicted to continue rising, according to the NASA Global Climate Change website. Scientists are actively seeking to understand this change and ...
General Physics
Jan 22, 2020
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47
Researchers at the University of Chicago and the U.S. Department of Energy's Argonne National Laboratory have developed a new method to measure how photocurrents flow in a 2-D material—a result that could have implications ...
Condensed Matter
Jan 22, 2020
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19
An international team of researchers from ITMO University, the Australian National University, and Korea University have experimentally trapped an electromagnetic wave in a gallium arsenide nanoresonator a few hundred nanometers ...
Optics & Photonics
Jan 22, 2020
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264
Researchers of Peter the Great St. Petersburg Polytechnic University (SPbPU) in collaboration with colleagues from the Physikalisch Technische Bundesanstalt (PTB) and a number of German scientific organizations, calculated ...
General Physics
Jan 22, 2020
0
150
Applying bound states in the continuum (BICs) in photonic integrated circuits enables low-loss light guidance and routing in low-refractive-index waveguides on high-refractive-index substrates. Here, we demonstrate high-quality ...
Optics & Photonics
Jan 22, 2020
0
2
For almost a century, astronomers have hypothesized that the universe contains more matter than what can be observed by the human eye. It is now believed that approximately 80 percent of the universe's mass is made up of ...
