A1 Journal article (refereed)
Nonlinear quantum Langevin equations for bosonic modes in solid-state systems (2017)

Manninen, J., Agasti, S., & Massel, F. (2017). Nonlinear quantum Langevin equations for bosonic modes in solid-state systems. Physical Review A, 96(6), Article 063830. https://doi.org/10.1103/PhysRevA.96.063830

JYU authors or editors

Publication details

All authors or editorsManninen, Juuso; Agasti, Souvik; Massel, Francesco

Journal or seriesPhysical Review A



Publication year2017


Issue number6

Article number063830

PublisherAmerican Physical Society

Publication countryUnited States

Publication languageEnglish


Publication open accessOpenly available

Publication channel open accessOpen Access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/56755

Web address where publication is availablehttps://arxiv.org/abs/1711.00424


Based on the experimental evidence that impurities contribute to the dissipation properties of solid-state open quantum systems, we provide here a description in terms of nonlinear quantum Langevin equations of the role played by two-level systems in the dynamics of a bosonic degree of freedom. Our starting point is represented by the description of the system-environment coupling in terms of coupling to two separate reservoirs, modeling the interaction with external bosonic modes and two-level systems, respectively. Furthermore, we show how this model represents a specific example of a class of open quantum systems that can be described by nonlinear quantum Langevin equations. Our analysis offers a potential explanation of the parametric effects recently observed in circuit-QED cavity optomechanics experiments.

Free keywordsLangevin equations; solid-state systems

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Other organizations:

Ministry reportingYes

Reporting Year2017

JUFO rating2

Last updated on 2024-11-05 at 00:27