A direct evidence for Time Reversal Violation (TRV) means an experiment that, considered by itself, clearly shows TRV independent of, and unconnected to, the results for CP Violation. No existing result before the recent BABAR experiment with entangled neutral B mesons had demonstrated TRV in this sense. There is a unique solution for the test of TRV with unstable particles thanks to the Einstein-Podolsky-Rosen (EPR) Entanglement between the two neutral mesons in B, and φ, Factories. The two quantum effects of the decays as filtering measurements of the meson states and the transfer of information of the first decay to the still living partner allow performing a genuine TRV asymmetry with the exchange of “in” and “out” states. With four independent TRV asymmetries, BABAR observes a large deviation of T-invariance with a statistical significance of 14 standard deviations, far more than needed to declare the result as a discovery. This is the first direct observation of TRV in the time evolution of any system. The perspectives for future additional studies of TRV are discussed.
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23 July 2014
II RUSSIAN-SPANISH CONGRESS ON PARTICLE AND NUCLEAR PHYSICS AT ALL SCALES, ASTROPARTICLE PHYSICS AND COSMOLOGY
1–4 October 2013
St. Petersburg, Russia
Research Article|
July 23 2014
Time reversal violation for entangled neutral mesons
J. Bernabeu
J. Bernabeu
Department of Theoretical Physics, University of Valencia, and IFIC, Joint Centre Univ. Valencia-CSIC,
Spain
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AIP Conf. Proc. 1606, 134–141 (2014)
Citation
J. Bernabeu; Time reversal violation for entangled neutral mesons. AIP Conf. Proc. 23 July 2014; 1606 (1): 134–141. https://doi.org/10.1063/1.4891125
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