Dynamics of non-Markovian open quantum systems

I De Vega, D Alonso - Reviews of Modern Physics, 2017 - APS
Open quantum systems (OQSs) cannot always be described with the Markov approximation,
which requires a large separation of system and environment time scales. An overview is …

Thermometry in the quantum regime: recent theoretical progress

M Mehboudi, A Sanpera… - Journal of Physics A …, 2019 - iopscience.iop.org
Controlling and measuring the temperature in different devices and platforms that operate in
the quantum regime is, without any doubt, essential for any potential application. In this …

Testing the validity of the 'local'and 'global'GKLS master equations on an exactly solvable model

JO González, LA Correa, G Nocerino… - Open Systems & …, 2017 - World Scientific
When deriving a master equation for a multipartite weakly-interacting open quantum
systems, dissipation is often addressed locally on each component, ie ignoring the coherent …

Enhancement of low-temperature thermometry by strong coupling

LA Correa, M Perarnau-Llobet, KV Hovhannisyan… - Physical Review A, 2017 - APS
We consider the problem of estimating the temperature T of a very cold equilibrium sample.
The temperature estimates are drawn from measurements performed on a quantum …

Bath-induced correlations enhance thermometry precision at low temperatures

G Planella, MFB Cenni, A Acin, M Mehboudi - Physical Review Letters, 2022 - APS
We study the role of bath-induced correlations in temperature estimation of cold bosonic
baths. Our protocol includes multiple probes, that are not interacting, nor are they initially …

Collective photon emission in solid state environments: Concatenating non-Markovian and Markovian dynamics

D Pandey, M Wubs - Physical Review Research, 2024 - APS
Collective light emission and multiqubit dynamics of solid-state quantum emitters are
affected both by their coupling to the light field and to lattice vibrations. The effect of phonons …

Heisenberg-Langevin versus quantum master equation

D Boyanovsky, D Jasnow - Physical Review A, 2017 - APS
The quantum master equation is an important tool in the study of quantum open systems. It is
often derived under a set of approximations, chief among them the Born (factorization) and …

Two distinguishable impurities in BEC: squeezing and entanglement of two Bose polarons

C Charalambous, MA Garcia-March, A Lampo… - SciPost Physics, 2019 - scipost.org
We study entanglement and squeezing of two uncoupled impurities immersed in a Bose-
Einstein condensate. We treat them as two quantum Brownian particles interacting with a …

Distance and coupling dependence of entanglement in the presence of a quantum field

JT Hsiang, BL Hu - Physical Review D, 2015 - APS
We study the entanglement between two coupled detectors, the internal degrees of freedom
of which are modeled by harmonic oscillators, interacting with a common quantum field …

Coherence of mechanical oscillators mediated by coupling to different baths

D Boyanovsky, D Jasnow - Physical Review A, 2017 - APS
We study the nonequilibrium dynamics of two mechanical oscillators with general linear
couplings to two uncorrelated thermal baths at temperatures T 1 and T 2, respectively. We …