Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/66065
Title: Maximally polarized states for quantum light fields
Author: Sanchez-Soto, L.L.
Yustas, E.C.
Bjork, G.
Klimov, Andrei B.
Issue Date: 2007
Abstract: The degree of polarization of a quantum field can be defined as its distance to an appropriate set of states. When we take unpolarized states as this reference set, the states optimizing this degree for a fixed average number of photons N̄ present a fairly symmetric, parabolic photon statistic, with a variance scaling as N̄2. Although no standard optical process yields such a statistic, we show that, to an excellent approximation, a highly squeezed vacuum can be taken as maximally polarized. We also consider the distance of a field to the set of its SU(2) transformed, finding that certain linear superpositions of SU(2) coherent states make this degree to be unity. © 2007 The American Physical Society.
URI: http://hdl.handle.net/20.500.12104/66065
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