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Two-time correlation functions:stochastic and conventional quantum mechanics

Authors:	L.?Feligioni author-information" > author-information__contact u-icon-before" > mailto:lorenzo@bu.edu" title=" lorenzo@bu.edu" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,O.?Panella,Y. N.?Srivastava,A.?Widom

Affiliation:	(1) Physics Department, Boston University, Boston, MA 02215, USA;(2) Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Via A. Pascoli, Perugia, 06123, Italy;(3) Dipartimento di Fisica dell'Università di Perugia, and INFN Sezione di Perugia, Via A. Pascoli, Perugia, 06123, Italy;(4) Physics Department Physics Department, Northeastern University, Boston, MA 02115, USA

Abstract:	An investigation of two-time correlation functions is reported within the framework of (i) stochastic quantum mechanics and (ii) conventional Heisenberg-Schr?dinger quantum mechanics. The spectral functions associated with the two-time electric dipole moment correlation functions are worked out in detail for the case of the hydrogen atom. While the single time averages are identical for stochastic and conventional quantum mechanics, differences arise in the two approaches for multiple time correlation functions.

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