TY - JOUR AU - Hoz Iglesias, Pablo de la AU - Björk, G. AU - Klimov, Andrei B. AU - Leuchs, Gerd AU - Sánchez Soto, Luis Lorenzo PY - 2014 DO - 10.1103/PhysRevA.90.043826 SN - 1050-2947 UR - https://hdl.handle.net/20.500.14352/33875 T2 - Physical review A AB - We capitalize on a multipolar expansion of the polarization density matrix, in which multipoles appear as successive moments of the Stokes variables. When all the multipoles up to a given order K vanish, we can properly say that the state isKth-order... LA - eng M2 - 043826/1 PB - American Physical Society KW - Light KW - Radiation TI - Unpolarized states and hidden polarization TY - journal article VL - 90 ER -