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arXiv · 1007.4618

Decoherence of Fock States Leads to a Maximally Quantum State

Andrew C. McClung·Tyler E. Keating·Adam T. C. Steege·Arjendu K. Pattanayak
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Abstract

We consider the Wigner function evolution of Fock states $|n\rangle$ linearly coupled to a Markovian bath of oscillators. In the absence of environmental coupling, apparent ``quantumness'' increases with $n$, but the presence of any environmental interaction causes high-$n$ states to lose their quantum features more rapidly than low-$n$ states. Using the negative volume of the Wigner function as a metric \cite{kenfack04}, we observe a time-dependent quantumness peak across the eigenstates.

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Andrew C. McClung, Tyler E. Keating, Adam T. C. Steege, Arjendu K. Pattanayak. 2010-07-27. Decoherence of Fock States Leads to a Maximally Quantum State. https://arxiv.org/abs/1007.4618

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