Two-photon geometrical phase

Files

PhysRevA.56.3129.pdf (229.69 KB)

Links to Files

https://link.aps.org/doi/10.1103/PhysRevA.56.3129

Permanent Link

https://doi.org/10.1103/PhysRevA.56.3129
 http://hdl.handle.net/11603/39897

Collections

UMBC Physics Department
UMBC Faculty Collection
UMBC Student Collection

Author/Creator

Author/Creator ORCID

Date

1997-10-01

Type of Work

journal articles
Text

Department

Program

Citation of Original Publication

Strekalov, D. V., and Y. H. Shih. “Two-Photon Geometrical Phase.” Physical Review A 56, no. 4 (1997): 3129–33. https://doi.org/10.1103/PhysRevA.56.3129.

Rights

©1997 American Physical Society.

Subjects

UMBC Quantum Optics Laboratory

Abstract

An advanced wave model is applied to a two-photon interference experiment to show that the observed interference effect is due to the geometrical phase of a two-photon state produced in spontaneous parametric down-conversion. The polarization state of the signal-idler pair is changed adiabatically so that the “loop” on the Poincaré sphere is opened in the signal channel and closed in the idler channel. Therefore, we observed an essentially nonlocal geometrical phase, shared by the entangled photon pair, or a biphoton.