منابع مشابه
The Search for Relativity Violations
could be manifest in the ticking rates of mirror-image, antimatter clocks and the stretching of matter along specific directions.
متن کاملSensitive polarimetric search for relativity violations in gamma-ray bursts.
We show that the recent measurements of linear polarization in gamma rays from GRB 930131 and GRB 960924 constrain certain types of relativity violations in photons to less than parts in 10(37), representing an improvement in sensitivity by a factor of 100,000.
متن کاملConstraints on relativity violations from gamma-ray bursts.
Tiny violations of the Lorentz symmetry of relativity and the associated discrete CPT symmetry could emerge in a consistent theory of quantum gravity such as string theory. Recent evidence for linear polarization in gamma-ray bursts improves existing sensitivities to Lorentz and CPT violation involving photons by factors ranging from ten to a million.
متن کاملProspects for large relativity violations in matter-gravity couplings.
Deviations from relativity are tightly constrained by numerous experiments. A class of unmeasured and potentially large violations is presented that can be tested in the laboratory only via weak-gravity couplings. Specialized highly sensitive experiments could achieve measurements of the corresponding effects. A single constraint of 1x10;{-11} GeV is extracted on one combination of the 12 possi...
متن کاملCatching Up with Flu
The sniffles, sneezes, aches, and pains of flu are a dreaded part of the winter season. The fear of another deadly pandemic is ever imminent, and this issue’s Select looks at recent efforts to understand this ever-shifting virus. From efforts aiming to predict its geographical spread to those that elucidate the basic viral biology and host response, researchers are looking for new ways to stay ...
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ژورنال
عنوان ژورنال: Physics
سال: 2009
ISSN: 1943-2879
DOI: 10.1103/physics.2.58