First and second law of quantum thermodynamics: A consistent derivation based on a microscopic definition of entropy
Deriving the laws of thermodynamics from a microscopic picture is a central quest of
statistical mechanics. This tutorial focuses on the derivation of the first and second law for …
statistical mechanics. This tutorial focuses on the derivation of the first and second law for …
Observational entropy, coarse-grained states, and the Petz recovery map: information-theoretic properties and bounds
Observational entropy provides a general notion of quantum entropy that appropriately
interpolates between Boltzmann's and Gibbs' entropies, and has recently been argued to …
interpolates between Boltzmann's and Gibbs' entropies, and has recently been argued to …
Witnessing quantum chaos using observational entropy
We study observation entropy (OE) for the quantum kicked top model, whose classical
counterpart possesses different phases: regular, mixed, or chaotic, depending on the …
counterpart possesses different phases: regular, mixed, or chaotic, depending on the …
Observational-entropic study of Anderson localization
R Modak, S Aravinda - Physical Review A, 2022 - APS
The notion of the thermodynamic entropy in the context of quantum mechanics is a
controversial topic. Although there were proposals to refer von Neumann entropy as the …
controversial topic. Although there were proposals to refer von Neumann entropy as the …
Extracting work from correlated many-body quantum systems
R Salvia, V Giovannetti - Physical Review A, 2022 - APS
The presence of correlations in the input state of a noninteracting many-body quantum
system can lead to an increase in the amount of work we can extract from it under global …
system can lead to an increase in the amount of work we can extract from it under global …
Relations between the quantum correlation entropy and quantum discord for X-states in multipartite systems
X Zhou, ZJ Zheng - The European Physical Journal Plus, 2022 - Springer
Observational entropy is a generalization of Boltzmann entropy to quantum mechanics.
Observational entropy based on coarse-grained measurements has a certain relations with …
Observational entropy based on coarse-grained measurements has a certain relations with …
Relations between the observational entropy and Rényi information measures
X Zhou, ZJ Zheng - Quantum Information Processing, 2022 - Springer
Observational entropy is a generalization of Boltzmann entropy to quantum mechanics.
Observational entropy based on coarse-grained measurements has a certain relations with …
Observational entropy based on coarse-grained measurements has a certain relations with …
Dynamical behavior of quantum correlation entropy under the noisy quantum channel for multiqubit systems
X Zhou - International Journal of Theoretical Physics, 2023 - Springer
Quantum correlation entropy is used to measure total non-classical correlation of multiple
states. It is based on a local coarse-grained measurement. Quantum noisy processes have a …
states. It is based on a local coarse-grained measurement. Quantum noisy processes have a …
Measuring energy by measuring any other observable
We present a method to estimate the probabilities of outcomes of a quantum observable, its
mean value, and higher moments by measuring any other observable. This method is …
mean value, and higher moments by measuring any other observable. This method is …
Entropy exchange and thermal fluctuations in the Jaynes–Cummings model
JD Castaño-Yepes - The European Physical Journal Plus, 2022 - Springer
The time dependence of the quantum entropy for a two-level atom interacting with a single-
cavity mode is computed using the Jaynes–Cummings model, when the initial state of the …
cavity mode is computed using the Jaynes–Cummings model, when the initial state of the …