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Dirac-Born-Infeld Galileon
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Title: DBI Galileon and Late time acceleration of the universe Authors: Sampurnanand, Anjan A Sen We consider 1+3 dimensional maximally symmetric Minkowski brane embedded in a 1+4 dimensional maximally symmetric Minkowski background. The resulting 1+3 dimensional effective field theory is...
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Positron
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The positron was discovered by Carl D. Anderson on August 2, 1932, for which he won the Nobel Prize for Physics in 1936. Read more This is a video showing positrons (and gamma rays) from a Fluorine-18 source made visible via a cloud chamber. Th...
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Fundamental Physics Prize
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Theoretical physicists win massive awards A billionaire Internet mogul has awarded a record US$27 million to nine physicists for their work on fundamental theory. Yuri Milner, who has made his fortune investing in social-media companies, announced the new Fundamental Physics Prize this morni...
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Spectrographs
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Title: A fast new catadioptric design for fibre-fed spectrographs Authors: Will Saunders The next generation of massively multiplexed multi-object spectrographs (DESpec, SUMIRE, BigBOSS, 4MOST, HECTOR) demand fast, efficient and affordable spectrographs, with higher resolutions (R = 30...
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Cosmological particle creation
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Title: Analogue of cosmological particle creation in an ion trap Authors: Ralf Schützhold, Michael Uhlmann, Lutz Petersen, Hector Schmitz, Axel Friedenauer, Tobias Schätz We study phonons in a dynamical chain of ions confined by a trap with a time-dependent (axial) potential strength and demo...
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XENON100 Experiment
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Title: First Dark Matter Results from the XENON100 Experiment Authors: E. Aprile, K. Arisaka, F. Arneodo, A. Askin, L. Baudis, A. Behrens, E. Brown, J. M. R. Cardoso, B. Choi, D. B. Cline, S. Fattori, A. D. Ferella, K.-L. Giboni, K. Hugenberg, A. Kish, C. W. Lam, J. Lamblin, R. F. Lang, K. E. Lim, J. A. M....
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Faster than light speed
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Two Baylor University scientists have come up with a new method to cause a spaceship to effectively travel faster than the speed of light, without breaking the laws of physics. Dr. Gerald Cleaver, associate professor of physics at Baylor, and Richard Obousy, a Baylor graduate student, theorize th...
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Casimir force
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Title: Casimir force measurements in Au-Au and Au-Si cavities at low temperature Authors: J. Laurent, H. Sellier, A. Mosset, S. Huant, J. Chevrier We report on measurements of the Casimir force in a sphere-plane geometry using a cryogenic force microscope to move the force probe in situ over diffe...
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ITER
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Nuclear fusion as a future abundant energy source would receive a boost if G8 leaders agree on the site for the world's first fusion test reactor, according to Carlo Rubbia and Robert Aymar , two nuclear scientists.
Carlo Rubbia is an Italian nuclear scientist who shared the 1984 Nobel physics p...
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Spatial light modulator
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Scientists have found a novel way to get images through "scattering" materials such as frosted glass or even skin, or even "see around corners". Much research in recent years has focused on correcting for scattering, mostly for medical applications. But the new trick, repo...
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Little Rip Cosmology
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Title: Viscous Little Rip Cosmology Authors: I. Brevik, E. Elizalde, S. Nojiri, S.D. Odintsov Dark energy of phantom or quintessence nature with an equation of state parameter w almost equal to -1 often leads the universe evolution to a finite-time future singularity. An elegant solution to this...
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Fluorine
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Title: Discovery of Fluorine in Cool Extreme Helium Stars
Authors: Gajendra Pandey (Indian Institute of Astrophysics, Bangalore, India)
Neutral fluorine (F I) lines are identified in the optical spectra of cool EHe stars. These are the first identification of F I lines in...
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Special unitary group SU(2)
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Doublet-triplet splitting problem In particle physics, the doublet-triplet (splitting) problem is a problem of some Grand Unified Theories, such as SU(5), SO(10), . Grand unified theories predict Higgs bosons (doublets of SU(2)) arise from representations of the unified group that contain o...
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Gauss–Bonnet gravity
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Title: Effectively four-dimensional spacetimes emerging from d=5 Einstein-Gauss-Bonnet Gravity Authors: Fernando Izaurieta, Eduardo Rodríguez Einstein-Gauss-Bonnet gravity in five-dimensional spacetime provides an excellent example of a theory that, while including higher-order c...
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Philosophiæ Naturalis Principia Mathematica
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Philosophiæ Naturalis Principia Mathematica, Latin for "Mathematical Principles of Natural Philosophy", often called the Principia, is a work in three books by Isaac Newton, first published 5 July 1687. Read more
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