Periodically refreshed baths to simulate open quantum many-body dynamics

  title={Periodically refreshed baths to simulate open quantum many-body dynamics},
  author={Archak Purkayastha and Giacomo Guarnieri and Steve Campbell and Javier Prior and John Goold},
  journal={Physical Review B},
Obtaining dynamics of an interacting quantum many-body system connected to multiple baths initially at different, finite, temperatures and chemical potentials is a challenging problem. This is due to a combination of the prevalence of strong correlations in the system, the infinite nature of the baths and the long time to reach steady state. In this work we develop a general formalism that allows access to the full non-Markovian dynamics of such open quantum many-body systems up to the non… 

Figures from this paper

Collisional open quantum dynamics with a generally correlated environment: Exact solvability in tensor networks
Quantum collision models are receiving increasing attention as they describe many nontrivial phenomena in dynamics of open quantum systems. In a general scenario of both fundamental and practical
Efficiency fluctuations in a quantum battery charged by a repeated interaction process
A repeated interaction process assisted by auxiliary thermal systems charges a quantum battery. The charging energy is supplied by switching on and off the interaction between the battery and the
Multipartite Correlations in Quantum Collision Models
Quantum collision models have proved to be useful for a clear and concise description of many physical phenomena in the field of open quantum systems: thermalization, decoherence, homogenization,
Thermalization of a spin chain strongly coupled to its environment
We study the thermalization of individual spins of a short XYZ Heisenberg chain with strongly coupled thermal leads by checking the consistency of two-time correlations with the
Dephasing enhanced transport in boundary-driven quasiperiodic chains
We study dephasing-enhanced transport in boundary-driven quasi-periodic systems. Specifically we consider dephasing modelled by current preserving Lindblad dissipators acting on the non-interacting
Dual current anomalies and quantum transport within extended reservoir simulations
Gabriela Wójtowicz, Justin E. Elenewski, 3 Marek M. Rams, ∗ and Michael Zwolak † Jagiellonian University, Institute of Theoretical Physics, Lojasiewicza 11, 30-348 Kraków, Poland Biophysical and
Reduced Dynamics of Full Counting Statistics
We present a theory of modified reduced dynamics in the presence of counting fields. Reduced dynamics techniques are useful for describing open quantum systems at long emergent timescales when the
Signatures of Liouvillian Exceptional Points in a Quantum Thermal Machine
Viewing a quantum thermal machine as a non-Hermitian quantum system, we characterize in full generality its analytical time-dependent dynamics by deriving the spectrum of its non-Hermitian
Signatures of exceptional points in a quantum thermal machine
The concepts and tools from the theory of non-Hermitian quantum systems are used to investigate the dynamics of a quantum thermal machine. This approach allows us to characterize in full generality


  • Rev. B 102, 115109
  • 2020
The Reaction Coordinate Mapping in Quantum Thermodynamics
We present an overview of the reaction coordinate approach to handling strong system-reservoir interactions in quantum thermodynamics. This technique is based on incorporating a collective degree of
Collision models in open system dynamics: A versatile tool for deeper insights?
This Perspective paper focuses on collision models, which have emerged as a remarkably flexible approach to understanding non-Markovian dynamics and to studying the thermodynamics of quantum systems, two areas in which they have proven to be particularly insightful.
EPL (Europhysics Letters) 133
  • 60001
  • 2021
  • Rev. Lett. 126, 130403
  • 2021
and D
  • A. Tennant, Nature Physics
  • 2021
and E
  • Ilievski,
  • 2021
and W
  • Ketterle,
  • 2021
  • P. Alam
  • Composites Engineering: An A–Z Guide
  • 2021