On the Concentration of Quantum States in Phase Space
نویسنده
چکیده
Let E(x), for x in a 2d-dimensional phase space, be an ir-reducible Weyl system, and : IR + ! IR + a convex function with (0) = 0. We discuss the maximum of R dx ? jh'; E(x)ij 2 with respect to unit vectors ';. When (t) = t p with 1 < p < 1 the maximum is attained if and only if ' and are coherent states with respect to the same quadratic form. We show that this statement is not correct for more general convex functions .
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