Generation of ideal thermal light in warm atomic vapor

We present the experimental generation of light with directly observable close-to ideal thermal statistical properties. The thermal light state is prepared using a spontaneous Raman emission in a warm atomic vapor. The photon number statistics is evaluated by both the measurement of second-order cor...

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Bibliographic Details
Published in:arXiv.org 2018-10
Main Authors: Mika, J, Podhora, L, Lachman, L, Obšil, P, Hloušek, J, Ježek, M, Filip, R, Slodička, L
Format: Article
Language:English
Subjects:
Atomic properties
Correlation analysis
Emission analysis
Quantum statistics
Online Access:Get full text
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Summary:We present the experimental generation of light with directly observable close-to ideal thermal statistical properties. The thermal light state is prepared using a spontaneous Raman emission in a warm atomic vapor. The photon number statistics is evaluated by both the measurement of second-order correlation function and by the detailed analysis of the corresponding photon number distribution, which certifies the quality of the Bose-Einstein statistics generated by natural physical mechanism. We further demonstrate the extension of the spectral bandwidth of the generated light to hundreds of MHz domain while keeping the ideal thermal statistics, which suggests a direct applicability of the presented source in a broad range of applications including optical metrology, tests of robustness of quantum communication protocols, or quantum thermodynamics.
ISSN:2331-8422
DOI:10.48550/arxiv.1801.10555