Generation of spatially broadband twin beams for quantum imaging

V. Boyer, A.M. Marino, P.D. Lett

Research output: Contribution to journalArticlepeer-review

119 Citations (Scopus)

Abstract

We generate spatially multimode twin beams using 4-wave mixing in a hot atomic vapor in a phase-insensitive traveling-wave amplifier configuration. The far-field coherence area measured at 3.5 MHz is shown to be much smaller than the angular bandwidth of the process and bright twin images with independently quantum-correlated subareas can be generated with little distortion. The available transverse degrees of freedom form a high-dimensional Hilbert space that we use to produce quantum-correlated twin beams with finite orbital angular momentum.
Original languageEnglish
Article number143601
Pages (from-to)n/a
JournalPhysical Review Letters
Volume100
Issue number14
DOIs
Publication statusPublished - 8 Apr 2008

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