Results 51 to 60 of about 52,018 (229)

Statistical Gravity and Entropy of Spacetime

Stats
We discuss the foundations of the statistical gravity theory we proposed in a recent publication [Riccardo Fantoni, Quantum Reports, 6, 706 (2024)].
Riccardo Fantoni
doaj   +1 more source

Hierarchy of piecewise non-linear maps with non-ergodicity behavior

, 2004
We study the dynamics of hierarchy of piecewise maps generated by one-parameter families of trigonometric chaotic maps and one-parameter families of elliptic chaotic maps of $\mathbf{cn}$ and $\mathbf{sn}$ types, in detail.
Abarbanel H, Bergenholtz J, Blank M Bunimovich L, Bodat P Alfouard F Descomps M Ngai K L, Dorfman J R, Eckmann J P, Jafarizadeh M A, Jafarizadeh M A, Keller G, M A Jafarizadeh, M Foroutan, Medio A, Ruelle D, S Behnia, Scopigno T, Turaev D   +15 more
core   +1 more source

High‐Power Performance of Textured Piezoelectric Ceramics Through Synergistic A‐Site Donor and B‐Site Acceptor Doping

Small Methods, EarlyView.
A/B‐site co‐doping combined with templated grain growth enables synergistic defect and domain engineering in textured PIN–PMN–PT ceramics. The approach simultaneously enhances piezoelectric response and mechanical quality factor, achieving a balanced soft–hard characteristic.
Minwoo Kim, Dong‐Gyu Lee, Il‐Ryeol Yoo, Byeong‐Jae Min, Ye Rok Choi, Hyun Soo Kim, Sunghoon Hur, Heemin Kang, Sahn Nahm, Jungho Ryu, Yongke Yan, Jeong Min Baik, Kyung‐Hoon Cho, Hyun‐Cheol Song   +13 more
wiley   +1 more source

A hypothesis on ergodicity and the signal‐to‐noise paradox

Atmospheric Science Letters
This letter raises the possibility that ergodicity concerns might have some bearing on the signal‐to‐noise paradox. This is explored by applying the ergodic theorem to the theory behind ensemble weather forecasting and the ensemble mean.
Daniel J. Brener
doaj   +1 more source

Measurement-Induced Dynamical Quantum Thermalization

Entropy
One of the fundamental problems of quantum statistical physics is how an ideally isolated quantum system can ever reach thermal equilibrium behavior despite the unitary time evolution of quantum-mechanical systems.
Marvin Lenk, Sayak Biswas, Anna Posazhennikova, Johann Kroha   +3 more
doaj   +1 more source

Anomalous diffusion and ergodicity breaking in heterogeneous diffusion processes

New Journal of Physics, 2013
We demonstrate the non-ergodicity of a simple Markovian stochastic process with space-dependent diffusion coefficient D ( x ). For power-law forms D ( x ) ≃ | x | ^α , this process yields anomalous diffusion of the form 〈 x ^2 ( t )〉 ≃  t ^2/(2− ^α ...
Andrey G Cherstvy, Aleksei V Chechkin, Ralf Metzler   +2 more
doaj   +1 more source

Statements About the Pervasiveness of Behavior Require Data About the Pervasiveness of Behavior

Frontiers in Psychology, 2020
Despite recent close attention to issues related to the reliability of psychological research (e.g., the replication crisis), issues of the validity of this research have not been considered to the same extent.
Craig P. Speelman, Marek McGann
doaj   +1 more source

Ergodicity of eigenfunctions for ergodic billiards [PDF]

Communications in Mathematical Physics, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zelditch, Steven, Zworski, Maciej
openaire   +3 more sources

Time‐resolved XPCS analysis across broad time‐scales using multi‐tau two‐time correlations

Journal of Synchrotron Radiation, EarlyView.
A scalable multi‐tau two‐time correlation framework enables efficient, time‐resolved XPCS analysis of long duration high‐frame‐rate modern synchrotron data while preserving sensitivity to non‐stationary dynamics.We present a multi‐tau two‐time correlation (MT‐2TC) analysis for X‐ray photon correlation spectroscopy that enables efficient analysis of ...
Fabio Brugnara, Marco Cammarata, Yuriy Chushkin, Irene Festi, Massimo Granata, David Hofman, Matteo Leonardi, Daniele Marzi, Denis Nabari, Angela Trapananti, Simone Ziglio, Federico Zontone, Marco Zanatta, Giacomo Baldi   +13 more
wiley   +1 more source

Pseudo almost automorphic solutions of class r in α-norm under the light of measure theory

Nonautonomous Dynamical Systems, 2020
Using the spectral decomposition of the phase space developed in Adimy and co-authors, we present a new approach to study weighted pseudo almost automorphic functions in the α-norm using the measure theory.
Zabsonre Issa, Mbainadji Djendode
doaj   +1 more source