Symmetric discrete coherent states for n-qubits

C. Muñoz and A.B. Klimov
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL 45 (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.

DOI: http://dx.doi.org/



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