Phase-space analysis of time-correlation functions

Agarwal, G. S. (1969) Phase-space analysis of time-correlation functions Physical Review, 177 (1). pp. 400-407. ISSN 0031-899X

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Using the recently developed phase-space techniques for the treatment of quantum-mechanical problems, we set up a procedure for calculating multitime-correlation functions in terms of the joint distribution functions. The correlation functions are then expressed simply as integrals over the associated phase space. Explicit expressions are given for these joint distribution functions, in terms of Green's functions of the c-number equations of motion for the phase-space equivalent of the density operator. Using these joint distribution functions, an exact regression theorem is rederived, and the connection with the multitime correspondence between classical and quantum stochastic processes is discussed.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:78890
Deposited On:23 Jan 2012 11:21
Last Modified:23 Jan 2012 11:21

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