Far from equilibrium field theory for strongly coupled light and matter: Dynamics of frustrated multimode cavity QED

Light-matter interfaces have now entered a new stage marked by the ability to engineer quantum correlated states under driven-dissipative conditions. To propel this new generation of experiments, we are confronted with the need to model nonunitary many-body dynamics in strongly coupled regimes by tr...

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Main Authors: Hossein Hosseinabadi, Darrick E. Chang, Jamir Marino
Format: Article
Language:English
Published: American Physical Society 2024-12-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.6.043314
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author Hossein Hosseinabadi
Darrick E. Chang
Jamir Marino
author_facet Hossein Hosseinabadi
Darrick E. Chang
Jamir Marino
author_sort Hossein Hosseinabadi
collection DOAJ
description Light-matter interfaces have now entered a new stage marked by the ability to engineer quantum correlated states under driven-dissipative conditions. To propel this new generation of experiments, we are confronted with the need to model nonunitary many-body dynamics in strongly coupled regimes by transcending traditional approaches in quantum optics. In this work, we contribute to this program by adapting a functional-integral technique, conventionally employed in high-energy physics, in order to obtain nonequilibrium dynamics for interacting light-matter systems. Our approach is grounded in constructing “two-particle irreducible” (2PI) effective actions, which provide a nonperturbative and conserving framework for describing quantum evolution at a polynomial cost in time. We apply our method to complement the analysis of spin-glass formation in the context of frustrated multimode cavity quantum electrodynamics, initiated in our accompanying work [Hosseinabadi et al., Phys. Rev. Res. 6, 043313 (2024)10.1103/PhysRevResearch.6.043313]. Finally, we outline the capability of the technique to describe other near-term platforms in many-body quantum optics, and its potential to make predictions for this new class of experiments.
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spelling doaj-art-68bf819816a64c1182a2038138b343a62025-01-06T15:19:48ZengAmerican Physical SocietyPhysical Review Research2643-15642024-12-016404331410.1103/PhysRevResearch.6.043314Far from equilibrium field theory for strongly coupled light and matter: Dynamics of frustrated multimode cavity QEDHossein HosseinabadiDarrick E. ChangJamir MarinoLight-matter interfaces have now entered a new stage marked by the ability to engineer quantum correlated states under driven-dissipative conditions. To propel this new generation of experiments, we are confronted with the need to model nonunitary many-body dynamics in strongly coupled regimes by transcending traditional approaches in quantum optics. In this work, we contribute to this program by adapting a functional-integral technique, conventionally employed in high-energy physics, in order to obtain nonequilibrium dynamics for interacting light-matter systems. Our approach is grounded in constructing “two-particle irreducible” (2PI) effective actions, which provide a nonperturbative and conserving framework for describing quantum evolution at a polynomial cost in time. We apply our method to complement the analysis of spin-glass formation in the context of frustrated multimode cavity quantum electrodynamics, initiated in our accompanying work [Hosseinabadi et al., Phys. Rev. Res. 6, 043313 (2024)10.1103/PhysRevResearch.6.043313]. Finally, we outline the capability of the technique to describe other near-term platforms in many-body quantum optics, and its potential to make predictions for this new class of experiments.http://doi.org/10.1103/PhysRevResearch.6.043314
spellingShingle Hossein Hosseinabadi
Darrick E. Chang
Jamir Marino
Far from equilibrium field theory for strongly coupled light and matter: Dynamics of frustrated multimode cavity QED
Physical Review Research
title Far from equilibrium field theory for strongly coupled light and matter: Dynamics of frustrated multimode cavity QED
title_full Far from equilibrium field theory for strongly coupled light and matter: Dynamics of frustrated multimode cavity QED
title_fullStr Far from equilibrium field theory for strongly coupled light and matter: Dynamics of frustrated multimode cavity QED
title_full_unstemmed Far from equilibrium field theory for strongly coupled light and matter: Dynamics of frustrated multimode cavity QED
title_short Far from equilibrium field theory for strongly coupled light and matter: Dynamics of frustrated multimode cavity QED
title_sort far from equilibrium field theory for strongly coupled light and matter dynamics of frustrated multimode cavity qed
url http://doi.org/10.1103/PhysRevResearch.6.043314
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AT darrickechang farfromequilibriumfieldtheoryforstronglycoupledlightandmatterdynamicsoffrustratedmultimodecavityqed
AT jamirmarino farfromequilibriumfieldtheoryforstronglycoupledlightandmatterdynamicsoffrustratedmultimodecavityqed