A resource-theoretic approach to vectorial coherence

BOSYK, GUSTAVO M.; BELLOMO, GUIDO; LUIS, ALFREDO

OPTICS LETTERS

OPTICAL SOC AMER

Lugar: Washington; Año: 2018 vol. 43 p. 1463 - 1466

0146-9592

We propose a formal resource-theoretic approach to assess the coherence between partially polarized electromagnetic fields. From this framework, we identify tworesources theories for the vectorial coherence, being the first one polarization-sensitive and the other one polarization-insensitive coherence. For each theory, we find the set of incoherent states and a class of operations that preserves this set (i.e. the incoherent operations). Both resources theories are endowed with a certain preorder relation that provides a hierarchy among the coherence polarization states; thus, a necessary condition to consider whether a quantity is proper to measure the vectorial coherence is that respects such a hierarchy.Finally, we examine most previously introduced coherence measures from this perspective.