Luis Aina, AlfredoKorolkova, Natalia2023-06-202023-06-202006-10-231050-294710.1103/PhysRevA.74.043817https://hdl.handle.net/20.500.14352/51494©2006 The American Physical Society. A.L. acknowledges support from Project No. FIS2004-01814 of the Spanish Dirección General de Investigación del Ministerio de Educación y Ciencia. N.K. acknowledges funding from the EU Project No. FP6-511004 COVAQIAL.We formulate polarization uncertainty relations and polarization squeezing criteria in a SU(2) invariant manner. In this formulation the SU(2) coherent states are the only minimum uncertainty states. We show that polarization squeezing is a nonclassical property. We analyze the relation between polarization squeezing and other nonclassical properties such as entanglement and quadrature squeezing.engjournal articlehttp://dx.doi.org/10.1103/PhysRevA.74.043817http://journals.aps.org/open access535OpticsPhysicsatomicmolecular & chemicalÓptica (Física)2209.19 Óptica Física