Divisibility of quantum dynamical maps and collision models
The divisibility of dynamical maps is visualized by trajectories in the parameter space and
analyzed within the framework of collision models. We introduce ultimate completely positive …
analyzed within the framework of collision models. We introduce ultimate completely positive …
Unifying quantum heat transfer in a nonequilibrium spin-boson model with full counting statistics
To study the full counting statistics of quantum heat transfer in a driven nonequilibrium spin-
boson model, we develop a generalized nonequilibrium polaron-transformed Redfield …
boson model, we develop a generalized nonequilibrium polaron-transformed Redfield …
Impact of non-Markovian quantum Brownian motion on quantum batteries
G Bhanja, D Tiwari, S Banerjee - Physical Review A, 2024 - APS
Recently, there has been an upsurge of interest in quantum thermodynamic devices, notably
quantum batteries. Quantum batteries serve as energy storage devices governed by the …
quantum batteries. Quantum batteries serve as energy storage devices governed by the …
Refined weak-coupling limit: Coherence, entanglement, and non-Markovianity
Á Rivas - Physical Review A, 2017 - APS
We study the properties of a refined weak-coupling limit that preserves complete positivity in
order to describe non-Markovian dynamics in the spin-boson model. With this tool, we show …
order to describe non-Markovian dynamics in the spin-boson model. With this tool, we show …
Effectiveness of the Krotov method in finding controls for open quantum systems
MEF Fernandes, FF Fanchini, EF de Lima… - Journal of Physics A …, 2023 - iopscience.iop.org
We apply the Krotov method (KM) for open and closed quantum systems to find optimized
controls to manipulate qubit/qutrit systems in the presence of the external environment. In …
controls to manipulate qubit/qutrit systems in the presence of the external environment. In …
Five approaches to exact open-system dynamics: Complete positivity, divisibility, and time-dependent observables
V Reimer, MR Wegewijs, K Nestmann… - The Journal of …, 2019 - pubs.aip.org
To extend the classical concept of Markovianity to an open quantum system, different
notions of the divisibility of its dynamics have been introduced. Here, we analyze this issue …
notions of the divisibility of its dynamics have been introduced. Here, we analyze this issue …
Momentum coupling in non-Markovian quantum Brownian motion
L Ferialdi, A Smirne - Physical Review A, 2017 - APS
We consider a model of non-Markovian quantum Brownian motion that consists of a
harmonic oscillator bilinearly coupled to a thermal bath, both via its position and via its …
harmonic oscillator bilinearly coupled to a thermal bath, both via its position and via its …
Quantum dissipation with conditional wave functions: Application to the realistic simulation of nanoscale electron devices
Without access to the full quantum state, modeling dissipation in an open system requires
approximations. The physical soundness of such approximations relies on using realistic …
approximations. The physical soundness of such approximations relies on using realistic …
Continuous-variable quantum sensing of a dissipative reservoir
YD Sha, W Wu - Physical Review Research, 2022 - APS
We propose a continuous-variable quantum sensing scheme, in which a harmonic oscillator
is employed as the probe to estimate the parameters in the spectral density of a quantum …
is employed as the probe to estimate the parameters in the spectral density of a quantum …
Dissipative systems fractionally coupled to a bath
A Vertessen, RC Verstraten… - … Interdisciplinary Journal of …, 2024 - pubs.aip.org
Quantum diffusion is a major topic in condensed-matter physics, and the Caldeira–Leggett
model has been one of the most successful approaches to study this phenomenon. Here, we …
model has been one of the most successful approaches to study this phenomenon. Here, we …