News About Time And Space
November 28, 2016
Optical clock technology tested in space for first time
Washington DC (SPX) Nov 21, 2016
For the first time, an optical clock has traveled to space, surviving harsh rocket launch conditions and successfully operating under the microgravity that would be experienced on a satellite. This demonstration brings optical clock technology much closer to implementation in space, where it could eventually allow GPS-based navigation with centimeter-level location precision. In The Optical Society's journal for high impact research, Optica, researchers report on a new compact, robust and automate ... read more

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Satellite Services supplies on-board sub-systems for smallsats and microsats.
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An Archimedes' screw for groups of quantum particles
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Controlling electrons in time and space
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Watching the buildup of quantum superpositions
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Researchers found mathematical structure that was thought not to exist
In the 1970s, a group of mathematicians started developing a theory according to which codes could be presented at a level one step higher than the sequences formed by zeros and ones: mathematical s ... more
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Simulations show swirling rings, whirlpool-like structure in subatomic 'soup'
At its start, the universe was a superhot melting pot that very briefly served up a particle soup resembling a "perfect," frictionless fluid. Scientists have recreated this "soup," known as quark-gl ... more
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Starvation Diet for Black Hole Dims Brilliant Galaxy
Astronomers may have solved the mystery of the peculiar volatile behavior of a supermassive black hole at the center of a galaxy. Combined data from NASA's Chandra X-ray Observatory and other observ ... more
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France doubles its experimental capability in nuclear physics
The new SPIRAL2 particle accelerator at the French large heavy-ion accelerator GANIL (CNRS/CEA), inaugurated on November 3 in the presence of the French President Francois Hollande, will be able to ... more
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Watching quantum jumps
Quantum particles can change their state very quickly - this is called a "quantum jump". An atom, for example, can absorb a photon, thereby changing into a state of higher energy. Usually, these pro ... more
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Entering the field of zeptosecond measurement
Laser physicists in Munich have measured a photoionization - in which an electron exits a helium atom after excitation by light - for the first time with zeptosecond precision. A zeptosecond is a tr ... more
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Scientists set traps for atoms with single-particle precision
Atoms, photons, and other quantum particles are often capricious and finicky by nature; very rarely at a standstill, they often collide with others of their kind. But if such particles can be indivi ... more
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Close galactic encounter leaves 'nearly naked' supermassive black hole
Astronomers using the super-sharp radio vision of the National Science Foundation's Very Long Baseline Array (VLBA) have found the shredded remains of a galaxy that passed through a larger galaxy, l ... more
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Hot on the heels of quasiparticles
If one tries to understand weather phenomena, it's not much use looking at the behaviour of single water droplets or air molecules. Instead, meteorologists (and also laymen) speak of clouds, winds a ... more
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Physicists make it possible to 3-D print your own baby universe
Researchers have created a 3D printed cosmic microwave background - a map of the oldest light in the universe - and provided the files for download. The cosmic microwave background (CMB) is a glow t ... more
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Cosmic connection found in both human cells and neutron stars
We humans may be more aligned with the universe than we realize. According to research published in the journal Physical Review C, neutron stars and cell cytoplasm have something in common: structur ... more
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Weak atomic bond, theorized 14 years ago, observed for first time
A Purdue University physicist has observed a butterfly Rydberg molecule, a weak pairing of two highly excitable atoms that he predicted would exist more than a decade ago. Rydberg molecules are form ... more
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VLT detects unexpected giant halos around distant Quasars
An international team of astronomers has discovered glowing gas clouds surrounding distant quasars. This new survey by the MUSE instrument on ESO's Very Large Telescope indicates that halos around ... more
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Observable Universe contains ten times more galaxies than previously thought
Astronomers using data from the NASA/ESA Hubble Space Telescopes and other telescopes have performed an accurate census of the number of galaxies in the Universe. The group came to the surprising co ... more
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Two-dimensional spin-orbit coupling for Bose-Einstein condensates realized
Spin-orbit coupling is one of the fundamental effects in quantum physics. It plays a vital role in many basic physic phenomena and exotic quantum states. These phenomena led to the foundation of sev ... more
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Phonon and magnon are a couple
Professor Park Je-Geun, Associate Director of the Center for Correlated Electron Systems (CCES), within the Institute for Basic Science (IBS), and colleagues have observed, quantified and created a ... more
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Compact graphene-based plasmon generator developed by physicists from MIPT
Researchers from MIPT's Laboratory of 2D Materials' Optoelectronics, Institute of Radioengineering and Electronics, and Tohoku University (Japan) have theoretically demonstrated the possibility of c ... more
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How often do quantum systems violate the second law of thermodynamics?
The likelihood of seeing quantum systems violating the second law of thermodynamics has been calculated by UCL scientists. In two papers, published in this week's issue of Physical Review X and fund ... more
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The universe is expanding at an accelerating rate or is it
Five years ago, the Nobel Prize in Physics was awarded to three astronomers for their discovery, in the late 1990s, that the universe is expanding at an accelerating pace. Their conclusions were bas ... more
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Argonne researchers posit way to locally circumvent Second Law of Thermodynamics
For more than a century and a half of physics, the Second Law of Thermodynamics, which states that entropy always increases, has been as close to inviolable as any law we know. In this universe, cha ... more
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Cosmological Mystery Solved by Map of Voids and Superclusters
A team of astrophysicists at the University of Portsmouth have created the largest ever map of voids and superclusters in the universe, which helps solve a long-standing cosmological mystery. The ma ... more
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Waterloo-led experiment achieves the strongest coupling between light and matter
Researchers at the University of Waterloo's Institute for Quantum Computing (IQC) recorded an interaction between light and matter 10 times larger than previously seen. The strength of the interacti ... more
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Finding the lightest superdeformed triaxial atomic nucleus
The nuclei of atoms of heavy elements do not necessarily take a spherical shape: they may be variously extended or flattened along one, two or even three axes. An international team of physicists, l ... more
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Did LIGO detect black holes or gravastars
After the first direct detection of gravitational waves that was announced last February by the LIGO Scientific Collaboration and made news all over the world, Luciano Rezzolla (Goethe University Fr ... more
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