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The interface of gravity and quantum mechanics illuminated by Wigner phase space
E. Giese, W. Zeller, S. Kleinert, M. Meister, V. Tamma, A. Roura, W.P. Schleich
171 - 236
10.3254/978-1-61499-448-0-171
Proceedings of the International School of Physics "Enrico Fermi"
Volume 188: Atom Interferometry
Abstract

We provide an introduction into the formulation of non-relativistic quantum mechanics using the Wigner phase-space distribution function and apply this concept to two physical situations at the interface of quantum theory and general relativity: i) the motion of an ensemble of cold atoms relevant to tests of the weak equivalence principle, and ii) the Kasevich-Chu interferometer. In order to lay the foundations for this analysis we first present a representation-free description of the Kasevich-Chu interferometer based on unitary operators.

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