Quantum phase space distributions in thermofield dynamics Academic Article uri icon


  • It is shown that the quantum phase space distributions corresponding to a density operator can be expressed, in thermofield dynamics, as overlaps between the state |> and 'thermal' coherent states. The usefulness of this approach is brought out in the context of a master equation describing a nonlinear oscillator for which exact expressions for the quantum phase distributions for an arbitrary initial condition are derived.

published proceedings

  • Journal of Physics A: Mathematical and Theoretical

author list (cited authors)

  • Chaturvedi, S., Srinivasan, V., & Agarwal, G. S.

citation count

  • 27

complete list of authors

  • Chaturvedi, S||Srinivasan, V||Agarwal, GS

publication date

  • March 1999