IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
Resource-theoretic approach to vectorial coherence
Autor/es:
LUIS, A.; BOSYK, G. M.; BELLOMO, G.
Revista:
OPTICS LETTERS
Editorial:
OPTICAL SOC AMER
Referencias:
Lugar: Washington; Año: 2018 vol. 43 p. 1463 - 1466
ISSN:
0146-9592
Resumen:
We propose a formal resource-theoretic approach to assess the coherence between partially polarized electromagnetic fields. From this framework, we identify two resource theories for the vectorial coherence: polarization-sensitive coherence and polarization-insensitive coherence. For each theory, we find the set of incoherent states and a class of operations that preserve this set (i.e., the incoherent operations). Both resource theories are endowed with a certain preorder relation that provides a hierarchy among the coherence-polarization states; thus, a necessary condition to consider in deciding whether a quantity is proper to measure the vectorial coherence is that it respects such a hierarchy. Finally, we examine most previously introduced coherence measures from this perspective.