Open quantum system dynamics and the mean force Gibbs state

AS Trushechkin, M Merkli, JD Cresser… - AVS Quantum Science, 2022 - pubs.aip.org
The dynamical convergence of a system to the thermal distribution, or Gibbs state, is a
standard assumption across all of the physical sciences. The Gibbs state is determined just …

Accuracy assessment of perturbative master equations: Embracing nonpositivity

R Hartmann, WT Strunz - Physical Review A, 2020 - APS
The reduced dynamics of an open quantum system obtained from an underlying
microscopic Hamiltonian can in general only approximately be described by a time-local …

A thermodynamically consistent Markovian master equation beyond the secular approximation

PP Potts, AAS Kalaee, A Wacker - New Journal of Physics, 2021 - iopscience.iop.org
Markovian master equations provide a versatile tool for describing open quantum systems
when memory effects of the environment may be neglected. As these equations are of an …

Hyperacceleration of quantum thermalization dynamics by bypassing long-lived coherences: An analytical treatment

F Ivander, N Anto-Sztrikacs, D Segal - Physical Review E, 2023 - APS
We develop a perturbative technique for solving Markovian quantum dissipative dynamics,
with the perturbation parameter being a small gap in the eigenspectrum. As an example, we …

Thermo-field dynamics approach to photo-induced electronic transitions driven by incoherent thermal radiation

MF Gelin, R Borrelli - Journal of Chemical Theory and …, 2023 - ACS Publications
The effects of thermal light–matter interaction on the dynamics of photo-induced electronic
transitions in molecules are investigated using a novel first principles approach based on …

Shedding (incoherent) light on quantum effects in light-induced biological processes

P Brumer - The journal of physical chemistry letters, 2018 - ACS Publications
Light-induced processes that occur in nature, such as photosynthesis and
photoisomerization in the first steps in vision, are often studied in the laboratory using …

Coherence and decoherence in quantum absorption refrigerators

M Kilgour, D Segal - Physical Review E, 2018 - APS
Absorption refrigerators transfer thermal energy from a cold reservoir to a hot reservoir using
input energy from a third, so-called work reservoir. We examine the operation of quantum …

Invalidation of the Bloch-Redfield equation in the sub-Ohmic regime via a practical time-convolutionless fourth-order master equation

E Crowder, L Lampert, G Manchanda, B Shoffeitt… - Physical Review A, 2024 - APS
Despite recent advances in quantum sciences, a quantum master equation that accurately
and simply characterizes open quantum dynamics across extremely long timescales and in …

Completely positive, simple, and possibly highly accurate approximation of the Redfield equation

D Davidović - Quantum, 2020 - quantum-journal.org
Here we present a Lindblad master equation that approximates the Redfield equation, a well
known master equation derived from first principles, without significantly compromising the …

Energetics and quantumness of Fano coherence generation

L Donati, FS Cataliotti, S Gherardini - Scientific Reports, 2024 - nature.com
In a multi-level quantum system Fano coherences stand for the formation of quantum
coherences due to the interaction with the continuum of modes characterizing an incoherent …