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Analysis of the master equation for the Dicke model in squeezed vacua

Author

Listed:
  • Hassan, S.S.
  • Wahiddin, M.R.
  • Saunders, R.
  • Bullough, R.K.

Abstract

The master equation for the reduced atomic density operator for the Dicke model (Na 2-level atoms on the same single site) interacting with a broad-band squeezed vacuum state field is derived using operator reaction field theory. The analysis through reaction field theory is presented first of all for the normal vacuum and then for the squeezed vacuum, both within the Markov and Born approximations. In the case of the squeezed vacuum field a statistical decorrelation between matter and field variables is also necessarily adopted in order to close the system of equations: this is also the case for the broad-band black-body field, and the theory contrasts with that which employs projection operator techniques and uses weak coupling. Models involving a both axially symmetrical and wholly isotropic distribution of the squeezed vacuum modes are compared.

Suggested Citation

  • Hassan, S.S. & Wahiddin, M.R. & Saunders, R. & Bullough, R.K., 1995. "Analysis of the master equation for the Dicke model in squeezed vacua," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 215(4), pages 556-576.
    • Handle: RePEc:eee:phsmap:v:215:y:1995:i:4:p:556-576
    DOI: 10.1016/0378-4371(94)00307-F
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