Entanglement detection via atomic deflection

We report on criteria to detect entanglement between the light modes of two crossed optical cavities by analyzing the transverse deflection patterns of an atomic beam. The photon exchange between the modes and the atoms occurs around the overlapping nodes of associated standing waves, which generate...

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Bibliographic Details
Published inarXiv.org
Main Authors Máximo, Carlos Eduardo, Bachelard, Romain, Gentil Dias de Morais Neto, Miled Hassan Youssef Moussa
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 31.10.2017
Subjects
Atomic beams
Deflection
Entanglement
Holes
Momentum
Nodes (standing waves)
Photons
Physics - Atomic Physics
Physics - Optics
Physics - Quantum Physics
Standing waves
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Summary:We report on criteria to detect entanglement between the light modes of two crossed optical cavities by analyzing the transverse deflection patterns of an atomic beam. The photon exchange between the modes and the atoms occurs around the overlapping nodes of associated standing waves, which generates the two-dimensional (2D) version of the Optical Stern-Gerlach (OSG) effect. In this optical cross-cavity setup, we show that the discrete signatures of the fields states, left in the momentum distribution of the deflected atoms, may reveal entanglement for a certain class of two-mode states. For a single photon, we present the possibility of quantifying entanglement by the rotation of the momentum distribution. For a larger number of photons, we demonstrate that quantum interference precludes the population of specific momentum states revealing maximum entanglement between the light modes.
ISSN:2331-8422
DOI:10.48550/arxiv.1703.03675