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Quantum noise and self-sustained radiation of PT-symmetric systems

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arxiv 1001.0539 v2 pith:2Z4ZJHUA submitted 2010-01-04 quant-ph cond-mat.otherphysics.optics

classification quant-phcond-mat.otherphysics.optics
keywords systemspt-symmetricquantumabsorptionamplificationnoiseradiationself-sustained
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The observation that PT-symmetric Hamiltonians can have real-valued energy levels even if they are non-Hermitian has triggered intense activities, with experiments, in particular, focusing on optical systems, where Hermiticity can be broken by absorption and amplification. For classical waves, absorption and amplification are related by time-reversal symmetry. This work shows that microreversibility-breaking quantum noise turns PT-symmetric systems into self-sustained sources of radiation, which distinguishes them from ordinary, Hermitian quantum systems.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. $\mathcal{PT}$-symmetry from Lindblad dynamics in an optomechanical system

    quant-ph 2019-08 conditional novelty 5.0 of 10

    The strong-to-weak coupling transition in optomechanical state transfer is interpreted as a passive PT-symmetry breaking transition, with exact Lindblad/non-Hermitian agreement only in the single-excitation subspace.

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