Wigner Distribution Analysis of a Schrodinger Cat Superposition of Displaced Equilibrium Coherent States

Details Wigner Distribution Analysis of a Schrodinger Cat Superposition of Displaced Equilibrium Coherent States Wigner Distribution Analysis of a Schrodinger Cat Superposition of Displaced Equilibrium Coherent States

2004-09-27

arxiv.org/abs/quant-ph/0409188v1

Acta Phys.Hung.B 20, 91(2004)

Physics

Quantum Physics

Proc. of Wigner Centennial Conference

Scientific paper

10.1556/APH.20.2004.1-2.17

Motivated by recent experiments, we consider a Schr\"{o}dinger cat superposition of two widely separated coherent states in thermal equilibrium. The time development of our system is obtained using Wigner distribution functions. In contrast to our discussion for a two-Gaussian wave packet [Phys. Lett. A 286 (2001) 87], we find that, in the absence of dissipation, the interference term does not decay rapidly in time, but in common with the other two terms, it oscillates in time and persists for all times

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