1206.1487 (C. Munoz et al.)

Symmetric discrete coherent states for n qubits    [PDF]

C. Munoz, A. B. Klimov, L. L. Sanchez-Soto

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.

View original: http://arxiv.org/abs/1206.1487