Entropy and temperature in finite isolated quantum systems

PC Burke, M Haque - Physical Review E, 2023 - APS
We investigate how the temperature calculated from the microcanonical entropy compares
with the canonical temperature for finite isolated quantum systems. We concentrate on …

Spacing ratio characterization of the spectra of directed random networks

T Peron, BMF de Resende, FA Rodrigues, LF Costa… - Physical Review E, 2020 - APS
Previous literature on random matrix and network science has traditionally employed
measures derived from nearest-neighbor level spacing distributions to characterize the …

Signatures of quantum chaos in low-energy mixtures of few fermions

P Łydżba, T Sowiński - Physical Review A, 2022 - APS
The low-energy dynamics of mesoscopic systems strongly depends on the presence of
internal equilibration. For this reason, a better interpretation of ultracold atom experiments …

Normal mode analysis of spectra of random networks

G Torres-Vargas, R Fossion… - Physica A: Statistical …, 2020 - Elsevier
Several spectral fluctuation measures of random matrix theory (RMT) have been applied in
the study of spectral properties of networks. However, the calculation of those statistics …

Crossover in nonstandard random-matrix spectral fluctuations without unfolding

G Torres-Vargas, JA Méndez-Bermúdez… - Physical Review E, 2018 - APS
Recently, singular value decomposition (SVD) was applied to standard Gaussian
ensembles of random-matrix theory to determine the scale invariance in spectral fluctuations …

Localization transitions in quadratic systems without quantum chaos

M Lisiecki, L Vidmar, P Łydżba - arXiv preprint arXiv:2410.05075, 2024 - arxiv.org
Transitions from delocalized to localized eigenstates have been extensively studied in both
quadratic and interacting models. The delocalized regime typically exhibits diffusion and …

Soliton-like structures in the spectrum and the corresponding eigenstates morphology for the quantum desymmetrized Sinai billiard

MR Sales, AL Azevedo, F Teston… - … Journal of Nonlinear …, 2021 - pubs.aip.org
By continuously varying certain geometric parameters γ of the totally desymmetrized
quantum Sinai billiard, we study the formation of the so-called soliton-like structures in the …

[HTML][HTML] Statistical fluctuations of negative parity levels in even mass nuclei

T Khatoni, H Sabri - Physics Letters B, 2021 - Elsevier
This study presents the first statistical analysis on the correlation of negative parity states. All
the available experimental data of 1− & 2− levels of the even mass nuclei in the 16≤ A≤ …

Random matrix theory tools for the predictive analysis of functional magnetic resonance imaging examinations

D Berger, GS Matharoo… - Journal of Medical …, 2023 - spiedigitallibrary.org
Purpose Random matrix theory (RMT) is an increasingly useful tool for understanding large,
complex systems. Prior studies have examined functional magnetic resonance imaging …

[图书][B] Temperature and dissipation in finite quantum systems

PC Burke - 2023 - search.proquest.com
The ideas in this thesis are placed broadly within the context of many-body quantum
dynamics, an area of research that has gained significant interest in recent years due to …