Four-wave mixing with anti-parity-time symmetry in hot 85Rb vapor

Niu, Ziqi; Jiang, Yue; Wen, Jianming; Zhang, Chuanwei; Du, Shengwang; Novikova, Irina

doi:10.1063/5.0173354

Four-wave mixing with anti-parity-time symmetry in hot ⁸⁵Rb vapor

Journal Article · Wed Jan 24 00:00:00 EST 2024 · Applied Physics Letters

DOI:https://doi.org/10.1063/5.0173354· OSTI ID:2283897

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College of William and Mary, Williamsburg, VA (United States)
National Inst. of Standards and Technology (NIST), Boulder, CO (United States); Univ. of Colorado, Boulder, CO (United States)
Kennesaw State University, Marietta, GA (United States)
Univ. of Texas at Dallas, Richardson, TX (United States)

Here, we report an experimental demonstration of anti-parity-time symmetric optical four-wave mixing in thermal rubidium vapor, where the propagation of probe and stokes fields in a double-Λ scheme is governed by a non-Hermitian Hamiltonian. We are particularly interested in studying quantum intensity correlations between the two fields near the exceptional point, taking into account loss and accompanied Langevin noise. Our experimental measurements of classical four-wave mixing gain and the associated two-mode relative-intensity squeezing are in reasonable agreement with the theoretical predictions.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Texas at Dallas, Richardson, TX (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)

Grant/Contract Number:: SC0022069

OSTI ID:: 2283897

Journal Information:: Applied Physics Letters, Vol. 124, Issue 4; Related Information: Supplementary materials: https://pubs.aip.org/apl/article-supplement/3105941/zip/044005_1_5.0173354.suppl_material/; ISSN 0003-6951

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Four-wave mixing with anti-parity-time symmetry in hot 85Rb vapor

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Four-wave mixing with anti-parity-time symmetry in hot ⁸⁵Rb vapor