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Title: Symmetric discrete coherent states for n-qubits
Author: Munoz, C.
Klimov, Andrei B.
Sanchez-Soto, L.L.
Issue Date: 2012
Abstract: We put forward a method of constructing discrete coherent states for n qubits. After establishing appropriate displacement operators, the coherent states appear as displaced versions of a fiducial vector that is fixed by imposing a number of natural symmetry requirements on its Q-function. Using these coherent states, we establish a partial order in the discrete phase space, which allows us to picture some n-qubit states as apparent distributions. We also analyze correlations in terms of sums of squared Q-functions. This article is part of a special issue of Journal of Physics A: Mathematical and Theoretical devoted to Coherent states: mathematical and physical aspects. � 2012 IOP Publishing Ltd.
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