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Quasiprobability distributions in open quantum systems: Spin-qubit systems
K. Thapliyal, , A. Pathak, S. Omkar, V. Ravishankar
Published in Academic Press Inc.
Volume: 362
Pages: 261 - 286
We study nonclassical features in a number of spin-qubit systems including single, two and three qubit states, as well as an N qubit Dicke model and a spin-1 system, of importance in the fields of quantum optics and information. This is done by analyzing the behavior of the well known Wigner, P, and Q quasiprobability distributions on them. We also discuss the not so well known F function and specify its relation to the Wigner function. Here we provide a comprehensive analysis of quasiprobability distributions for spin-qubit systems under general open system effects, including both pure dephasing as well as dissipation. This makes it relevant from the perspective of experimental implementation. © 2015 Elsevier Inc..
About the journal
JournalAnnals of Physics
PublisherAcademic Press Inc.
Open AccessNo