Authors

A. F. Abouraddy; T. M. Yarnall;G. Di Giuseppe

Comments

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Abbreviated Journal Title

Phys. Rev. A

Keywords

FREQUENCY CORRELATIONS; 2 PHOTONS; ENTANGLEMENT; INTERFERENCE; Optics; Physics, Atomic, Molecular & Chemical

Abstract

There is a fundamental dimensional mismatch between the Hong-Ou-Mandel (HOM) interferometer and two-photon (2P) states: while the latter are represented using two temporal (or spectral) dimensions, the HOM interferometer allows access to only one temporal dimension. We introduce a linear 2P interferometer containing two independent delays spanning the 2P state. By "unlocking" the fixed phase relationship between the interfering 2P probability amplitudes in a HOM interferometer, one of these probability amplitudes now serves as a delay-free 2P reference against which the other beats, thereby resolving ambiguities in 2P state identification typical of HOM interferometry and extending its utility to a large family of 2P states.

Journal Title

Physical Review A

Volume

87

Issue/Number

6

Publication Date

1-1-2013

Document Type

Article

Language

English

First Page

5

WOS Identifier

WOS:000320162900002

ISSN

1050-2947

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