Adapted projection operator technique for the treatment of initial correlations
Standard theoretical descriptions of the dynamics of open quantum systems rely on the
assumption that the correlations with the environment can be neglected at some reference …
assumption that the correlations with the environment can be neglected at some reference …
Improving the estimation of environment parameters via initial probe-environment correlations
Small, controllable quantum systems, known as quantum probes, have been proposed to
estimate various parameters characterizing complex systems such as the environments of …
estimate various parameters characterizing complex systems such as the environments of …
The role of initial system-environment correlations in the accuracies of parameters within spin-spin model
We investigate the effect of initial system-environment correlations to improve the estimation
of environment parameters. By employing various physical situations of interest, we present …
of environment parameters. By employing various physical situations of interest, we present …
Time evolution of quantum correlations in presence of state dependent bath
The emerging quantum technologies heavily rely on the understanding of dynamics in open
quantum systems. In the Born approximation, the initial system-bath correlations are often …
quantum systems. In the Born approximation, the initial system-bath correlations are often …
The impact of quantum correlations on parameter estimation in a spin reservoir
We study the impact of quantum correlations existing within the system-environment thermal
equilibrium state while estimating the parameters of the spin reservoir. By employing various …
equilibrium state while estimating the parameters of the spin reservoir. By employing various …
Improving the estimation of environment parameters via a two-qubit scheme
We demonstrate how using two qubits can drastically improve the estimation of environment
parameters compared to using only a single qubit. The two qubits are coupled to a common …
parameters compared to using only a single qubit. The two qubits are coupled to a common …
Entanglement dynamics of two coupled spins interacting with an adjustable spin bath: effect of an exponential variable magnetic field
The present work is devoted to studying the entanglement dynamics of two central spins
coupled in a spin environment and subjected, simultaneously, to an external magnetic field …
coupled in a spin environment and subjected, simultaneously, to an external magnetic field …
The role of initial system–environment correlations with a spin environment
Open quantum systems are a subject of immense interest as their understanding is crucial in
the implementation of modern quantum technologies. In the study of their dynamics, the role …
the implementation of modern quantum technologies. In the study of their dynamics, the role …
Master equation incorporating the system-environment correlations present in the joint equilibrium state
We present a general master equation, correct to second order in the system-environment
coupling strength, that takes into account the initial system-environment correlations. We …
coupling strength, that takes into account the initial system-environment correlations. We …
Equilibration and typicality in quantum processes
P Figueroa-Romero - arxiv preprint arxiv:2102.02289, 2021 - arxiv.org
Forgetfulness is a common feature of nature. Moreover, without forgetfulness, repeatability
would be impossible. Despite this, small systems constantly leak information about their …
would be impossible. Despite this, small systems constantly leak information about their …