Classical distinguishability as an operational measure of polarization
We put forward an operational degree of polarization that can be extended in a natural way to fields whose wave fronts are not necessarily planar. This measure appears as a distance from a state to the set of all of its polarization-transformed counterparts. By using the Hilbert-Schmidt metric, the...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2014 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/33947 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/33947 |
| Access Level: | acceso abierto |
| Palabra clave: | 535 Hilbert-Schmidt distance Quantum states Electromagnetic-fields Unpolarized radiation Statistical distance Correlation-matrices Relative entropy 3 dimensions Entanglement Coherence. Óptica (Física) 2209.19 Óptica Física |
| Sumario: | We put forward an operational degree of polarization that can be extended in a natural way to fields whose wave fronts are not necessarily planar. This measure appears as a distance from a state to the set of all of its polarization-transformed counterparts. By using the Hilbert-Schmidt metric, the resulting degree is a sum of two terms: one is the purity of the state and the other can be interpreted as a classical distinguishability, which can be experimentally determined in an interferometric setup. For transverse fields, this reduces to the standard approach, whereas it allows one to get a straight expression for nonparaxial fields. |
|---|