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PhysRevB.107.125309.pdf
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Final Published Version
Affiliation
Department of Physics, The University of ArizonaWyant College of Optical Sciences, The University of Arizona
Issue Date
2023-03-31
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American Physical SocietyCitation
Spotnitz, M. Em, Nai-Hang Kwong, and Rolf Binder. "Collective terahertz fluctuation modes in a polariton laser." Physical Review B 107.12 (2023): 125309.Journal
Physical Review BRights
© 2023 American Physical Society.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
A polariton Bardeen-Cooper-Schrieffer (BCS) state in a semiconductor microcavity is an example of symmetry-broken states in open systems. Fluctuations of the order parameter are an important tool to characterize such a state. With the condensate formed by composite particles, the set of zero-momentum fluctuations spans an infinite-dimensional electron-hole mode subspace. We show that collective fluctuation modes with orbital angular momentum different from that of the order parameter can be obtained with terahertz radiation, and that a physical manifestation of such modes, which are not Higgs modes, can be terahertz gain. © 2023 American Physical Society.Note
Immediate accessISSN
2469-9950Version
Final Published Versionae974a485f413a2113503eed53cd6c53
10.1103/PhysRevB.107.125309