Introduction to the Dicke Model: From Equilibrium to Nonequilibrium, and Vice Versa

P Kirton, MM Roses, J Keeling… - Advanced Quantum …, 2019 - Wiley Online Library
The Dicke model describes the coupling between a quantized cavity field and a large
ensemble of two‐level atoms. When the number of atoms tends to infinity, this model can …

Open quantum systems with local and collective incoherent processes: Efficient numerical simulations using permutational invariance

N Shammah, S Ahmed, N Lambert, S De Liberato… - Physical Review A, 2018 - APS
The permutational invariance of identical two-level systems allows for an exponential
reduction in the computational resources required to study the Lindblad dynamics of …

Emergent dark states from superradiant dynamics in multilevel atoms in a cavity

A Piñeiro Orioli, JK Thompson, AM Rey - Physical Review X, 2022 - APS
We investigate the collective decay dynamics of atoms with a generic multilevel structure
(angular momenta F↔ F′) coupled to two light modes of different polarization inside a …

Emerging dissipative phases in a superradiant quantum gas with tunable decay

F Ferri, R Rosa-Medina, F Finger, N Dogra, M Soriente… - Physical Review X, 2021 - APS
Exposing a many-body system to external drives and losses can transform the nature of its
phases and opens perspectives for engineering new properties of matter. How such …

Nonlinear semiclassical dynamics of the unbalanced, open Dicke model

KC Stitely, A Giraldo, B Krauskopf, S Parkins - Physical Review Research, 2020 - APS
In recent years there have been significant advances in the study of many-body interactions
between atoms and light confined to optical cavities. One model that has received …

Many-body open quantum systems

R Fazio, J Keeling, L Mazza, M Schiro - arXiv preprint arXiv:2409.10300, 2024 - arxiv.org
These Lecture Notes discuss the recent theoretical advances in the understanding of open
quantum many-body physics in platforms where both dissipative and coherent processes …

Entangled time-crystal phase in an open quantum light-matter system

R Mattes, I Lesanovsky, F Carollo - Physical Review A, 2023 - APS
Time crystals are nonequilibrium many-body phases in which the state of the system
dynamically approaches a limit cycle. While these phases have recently been the focus of …

Scrambling in the Dicke model

Y Alavirad, A Lavasani - Physical Review A, 2019 - APS
The scrambling rate λ L associated with the exponential growth of out-of-time-ordered
correlators can be used to characterize quantum chaos. Here we use a particular Majorana …

Driven-dissipative Ising model: An exact field-theoretical analysis

DA Paz, MF Maghrebi - Physical Review A, 2021 - APS
Driven-dissipative many-body systems are difficult to analyze analytically due to their
nonequilibrium dynamics, dissipation, and many-body interactions. In this paper, we …

Lasing and counter-lasing phase transitions in a cavity-QED system

KC Stitely, A Giraldo, B Krauskopf, S Parkins - Physical Review Research, 2022 - APS
We study the effect of spontaneous emission and incoherent atomic pumping on the
nonlinear semiclassical dynamics of the unbalanced Dicke model—a generalization of the …