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Fine structure constant
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(Preview)
Researchers at The University of Manchester have used graphene to measure an important and mysterious fundamental constant - and glimpse the foundations of the universe. The researchers from The School of Physics and Astronomy, led by Professor Andre Geim, have found that the worlds thinnest ma...
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21
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magnetic moment
(Preview)
Title: Observation of Spin Flips with a Single Trapped Proton Authors: S. Ulmer (1,2 and 3), C.C. Rodegheri (1 and 2), K. Blaum (1 and 3), H. Kracke (2 and 4), A. Mooser (2 and 4), W. Quint (3 and 5), J. Walz (2 and 4) ((1) Max-Planck-Institut fuer Kernphysik, Germany, (2) Institut fuer Physik, Johannes G...
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Varying speed of light
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The varying speed of light cosmology has been proposed independently by Jean-Pierre Petit from 1988 and then John Moffat in 1992 and the two-man team of Andreas Albrecht and João Magueijo in 1998 to explain the horizon problem of cosmology and propose an alternative to cosmic inflation. In Petit's...
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Schrodinger's cat
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Title: Towards Quantum Superposition of Living Organisms Authors: Oriol Romero-Isart, Mathieu L. Juan, Romain Quidant, J. Ignacio Cirac The most striking feature of quantum mechanics is the existence of superposition states, where an object appears to be in different situations at the same ti...
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Charm Meson Decays
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Title: CP Violation and Mixing in Charm Meson Decays from BABAR Authors: Chunhui Chen Mixing and CP violation in charm meson decays provide a unique probe of possible physics beyond the standard model. In this paper, we give a brief review of the current measurements from the BABAR experiment. [url...
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3
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Baryogenesis
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Title: Neutrino Mass Hierarchy and neutron-anti-neutron Oscillation from Baryogenesis Authors: K. S. Babu, P. S. Bhupal Dev, R. N. Mohapatra (Version v3) It has been recently proposed that the matter-antimatter asymmetry of the universe may have its origin in "post-sphaleron baryogene...
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SUPERFLUIDITY
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(Preview)
(old news April 13, 2004)
SUPERFLUIDITY IN AN ULTRACOLD GAS OF FERMION ATOMS has been demonstrated in an experiment at MIT, where an array of vortices has been set in motion in a molecular Bose Einstein condensate (BEC) of paired lithium-6 atoms.
There have been previous hints of...
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31
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Proton
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Title: Determining the size of the proton Authors: N. G. Kelkar, F. Garcia Daza, M. Nowakowski A measurement of the Lamb shift of 49,881.88(76) GHz in muonic hydrogen in conjunction with theoretical estimates of the proton structure effects was recently used to deduce an accurate but rather small...
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Information field theory
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Title: Information field theory Authors: Torsten Enßlin Non-linear image reconstruction and signal analysis deal with complex inverse problems. To tackle such problems in a systematic way, I present information field theory (IFT) as a means of Bayesian, data based inference on spatially dist...
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K-DEMO
(Preview)
South Korea makes billion-dollar bet on fusion power South Korea has embarked on the development of a preliminary concept design for a fusion power demonstration reactor in collaboration with the US Department of Energy's Princeton Plasma Physics Laboratory (PPPL) in New Jersey. The project is...
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Super-Kamiokande
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Title: Recent Results from Super-Kamiokande Authors: H. Sekiya, for the Super-Kamiokande Collaboration (Version v2) The recent results on the oscillation analyses of solar neutrino and the atmospheric neutrino measurements in Super-Kamiokande are presented. Recent status of the detector...
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5
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X-ray machine
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X-ray machine from 1896 compared to modern version Scientists have dusted off X-ray equipment dating from shortly after the discovery of the rays in 1895, in order to put it through its paces. Researchers from the same Dutch town where the system was originally built used it to produce striking imag...
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The kilogram
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Scientists at the Institute for Crystal Growth in Berlin have produced the crucial silicon crystal that could lead to a redefinition of the international mass unit kilogram. Up to now, the value of the kilogram is defined as being equal to the mass of the international prototype of the kilogram whic...
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8
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Domain walls
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Title: Casimir force for cosmological domain walls Authors: Tomohiro Matsud We calculate the vacuum fluctuations that may affect the evolution of cosmological domain walls. Considering domain walls, which are classically stable and have interaction with a scalar field, we show that explicit...
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Magnetic fields
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Scientists from the universities of Kiel and Düsseldorf (both Germany) have developed a method to simulate gigantic magnetic fields that normally occur on neutron stars only. The physicists Professor Hartmut Löwen (Heinrich-Heine-Universität Düsseldorf) and Professor Michael Bonitz (Kie...
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