Quantum Field Theory of BECs

  • J. T. Mendonça
  • Hugo Terças
Chapter
Part of the Springer Series on Atomic, Optical, and Plasma Physics book series (SSAOPP, volume 70)

Abstract

We now consider the Bogoliubov theory of a Bose Einstein condensate, which describes the phonon field as a quantum field, and allows to study quantum field phenomena at low energies, including vacuum fluctuations and phonon emission. Mechanisms for phonon pair creation from vacuum are similar to those known for photons in quantum electrodynamics, and will be discussed in this chapter. They include: time refraction, the dynamical Casimir effect and Hawking radiation. This last radiation process also allows us to discuss condensate analogues of a gravitational field and the equivalent space-time metric.

Keywords

Coherence Refraction 

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Copyright information

© Springer Science+Business Media, LLC 2013

Authors and Affiliations

  • J. T. Mendonça
    • 1
  • Hugo Terças
    • 2
  1. 1.Instituto Superior TecnicoLisbonPortugal
  2. 2.Université Blaise PascalAubière CedexFrance

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