Information content of nonautonomous free fields in curved space-time

Details Information content of nonautonomous free fields in curved space-time Information content of nonautonomous free fields in curved space-time

Mar 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011phrvd..83f4033p&link_type=abstract

Physical Review D, vol. 83, Issue 6, id. 064033

Mathematics

Logic

Quantum Field Theory In Curved Spacetime, Entanglement Production, Characterization, And Manipulation, Mathematical And Relativistic Aspects Of Cosmology, Quantum Cosmology

Scientific paper

We show that it is possible to quantify the information content of a nonautonomous free field state in curved space-time. A covariance matrix is defined and it is shown that, for symmetric Gaussian field states, the matrix is connected to the entropy of the state. This connection is maintained throughout a quadratic nonautonomous (including possible phase transitions) evolution. Although particle-antiparticle correlations are dynamically generated, the evolution is isoentropic. If the current standard cosmological model for the inflationary period is correct, in absence of decoherence such correlations will be preserved, and could potentially lead to observable effects, allowing for a test of the model.

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