Generation of (2 × 2) and (4 × 4) two-photon states with tunable degree of entanglement and mixedness

✍ Scribed by M. Barbieri; C. Cinelli; F. De Martini; P. Mataloni

• Book ID: 105357413
• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 205 KB
• Volume: 52
• Category: Article
• ISSN: 0015-8208
• DOI: 10.1002/prop.200410180

✦ Synopsis

Abstract

A parametric source of polarization entangled photon pairs with peculiar spatial characteristics allows to generate any kind of bi‐partite entangled states with tunable dgree of entanglement and mixedness. In particular, maximally entangled mixed states (MEMS) have been created in a reliable way by a “patchwork” technique and investigated by quantum tomography. By the same source, momentum‐polarization hyper‐entangled two‐photon states have been synthesized. The quality of the entanglement in the two degrees of freedom has been tested by multimode Hong‐Ou‐Mandel interferometry.