Process tomography of field damping and measurement of fock state lifetimes by quantum nondemolition photon counting in a cavity

Brune, M. and Bernu, J. and Guerlin, C. and Deleglise, S. and Sayrin, C. and Gleyzes, S. and Kuhr, S. and Dotsenko, I. and Raimond, J. M. and Haroche, S. (2008) Process tomography of field damping and measurement of fock state lifetimes by quantum nondemolition photon counting in a cavity. Physical Review Letters, 101 (24). ISSN 1079-7114 (https://doi.org/10.1103/PhysRevLett.101.240402)

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Abstract

The relaxation of a quantum field stored in a high-Q superconducting cavity is monitored by nonresonant Rydberg atoms. The field, subjected to repetitive quantum nondemolition photon counting, undergoes jumps between photon number states. We select ensembles of field realizations evolving from a given Fock state and reconstruct the subsequent evolution of their photon number distributions. We realize in this way a tomography of the photon number relaxation process yielding all the jump rates between Fock states. The damping rates of the n photon states (0

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• Item metadata

  Item type:	Article
  ID code:	30286
  Dates:	Date Event 12 December 2008 Published
  Subjects:	Science > Physics
  Department:	Faculty of Science > Physics
  Depositing user:	Pure Administrator
  Date deposited:	15 Nov 2011 16:44
  Last modified:	08 Apr 2024 18:57
  URI:	https://strathprints.strath.ac.uk/id/eprint/30286