Optical Bell-state analysis in the coincidence basis

Walborn, SP; Nogueira, WAT; Padua, S; Monken, CH

Abstract

Many quantum information protocols require a Bell-state measurement of entangled systems. Most optical Bell-state measurements utilize two-photon interference at a beam splitter. By creating polarization-entangled photons with spontaneous parametric down-conversion using a first-order Hermite-Gaussian pump beam, we invert the usual interference behavior and perform an incomplete Bell-state measurement in the coincidence basis. We discuss the possibility of a complete Bell-state measurement in the coincidence basis using hyperentangled states.

Más información

Título según WOS: ID WOS:000182127200003 Not found in local WOS DB
Título de la Revista: EPL
Volumen: 62
Número: 2
Editorial: IOP PUBLISHING LTD
Fecha de publicación: 2003
Página de inicio: 161
Página final: 167
DOI:

10.1209/epl/i2003-00339-6

Notas: ISI