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Ergodicity describes an equivalence between the expectation value and the time average of observables. Applied to human behaviour, ergodic theories of decision-making reveal how individuals should tolerate risk in different environments. To…

The experimental realization of successive non-demolition measurements on single microscopic systems brings up the question of ergodicity in Quantum Mechanics (QM). We investigate whether time averages over one realization of a single…

量子物理 · 物理学 2015-04-06 Mariano Bauer , Pier A. Mello

The approach to the ergodic limit in Monte Carlo simulations is studied using both analytic and numerical methods. With the help of a stochastic model, a metric is defined that enables the examination of a simulation in both the ergodic and…

化学物理 · 物理学 2009-11-06 J. P. Neirotti , D. L. Freeman , J. D. Doll

Ergodicity economics is a new branch of economic theory that notes the conceptual difference between time averages and expectation values, which coincide only for ergodic observables. It postulates that individual agents maximise the time…

经济学 · 定量金融 2021-03-02 Ole Peters , Alexander Adamou

The stochastic processes underlying the growth and stability of biological and psychological systems reveal themselves when far from equilibrium. Far from equilibrium, nonergodicity reigns. Nonergodicity implies that the average outcome for…

统计方法学 · 统计学 2022-02-03 Madhur Mangalam , Damian G. Kelty-Stephen

A factor copula model is proposed in which factors are either simulable or estimable from exogenous information. Point estimation and inference are based on a simulated methods of moments (SMM) approach with non-overlapping simulation…

计量经济学 · 经济学 2022-12-02 Alexander Mayer , Dominik Wied

We derive the first two moments of generic positive stochastic functionals in terms of the one- and two-time probability density functions of the underlying random walk, and we prove ergodicity of observables in stationary random walks.…

统计力学 · 物理学 2026-04-20 Vicenç Méndez , Carlos Hervás , Rosa Flaquer-Galmés

Using a model Hamiltonian for a single-mode electromagnetic field interacting with a nonlinear medium, we show that quantum expectation values of subsystem observables can exhibit remarkably diverse ergodic properties even when the dynamics…

量子物理 · 物理学 2007-06-21 C. Sudheesh , S. Lakshmibala , V. Balakrishnan

We propose and analyze a sample-efficient protocol to estimate the fidelity between an experimentally prepared state and an ideal target state, applicable to a wide class of analog quantum simulators without advanced sophisticated…

量子物理 · 物理学 2023-09-14 Daniel K. Mark , Joonhee Choi , Adam L. Shaw , Manuel Endres , Soonwon Choi

We study the ergodic properties of a two-dimensional self-gravitating system using molecular dynamics simulations. We apply three different tests for ergodicity: a direct method comparing the time average of a particle momentum and position…

统计力学 · 物理学 2016-01-20 C. H. Silvestre , T. M. Rocha Filho

Calibrating agent-based models (ABMs) to data is among the most fundamental requirements to ensure the model fulfils its desired purpose. In recent years, simulation-based inference methods have emerged as powerful tools for performing this…

多智能体系统 · 计算机科学 2022-06-16 Joel Dyer , Patrick Cannon , J. Doyne Farmer , Sebastian M. Schmon

We define a class of dynamical maps on the quasi-local algebra of a quantum spin system, which are quantum analogues of probabilistic cellular automata. We develop criteria for such a system to be ergodic, i.e., to possess a unique…

凝聚态物理 · 物理学 2009-10-28 S. Richter , R. F. Werner

We rigorously examine the ergodic properties of quantum lattice models with short range interactions, in the C* algebra formulation of statistical mechanics. Ergodicity results, in the context of group actions on C* algebras, assume that…

数学物理 · 物理学 2023-11-07 Dimitrios Ampelogiannis , Benjamin Doyon

For an affine two factor model, we study the asymptotic properties of the maximum likelihood and least squares estimators of some appearing parameters in the so-called subcritical (ergodic) case based on continuous time observations. We…

统计理论 · 数学 2014-06-17 Matyas Barczy , Leif Doering , Zenghu Li , Gyula Pap

We suggest employing log-ergodic processes to simulate the velocity of money in an ergodic manner. Our approach sheds light on economic behavior, policy implications, and financial dynamics by maintaining long-term stability. By bridging…

综合金融 · 定量金融 2024-12-13 Kiarash Firouzi , Mohammad Jelodari Mamaghani

We investigate the moment estimation for an ergodic diffusion process with unknown trend coefficient. We consider nonparametric and parametric estimation. In each case, we present a lower bound for the risk and then construct an…

统计理论 · 数学 2011-11-10 Yury A. Kutoyants , Nakahiro Yoshida

The aim of this paper is to study the asymptotic properties of a class of kernel conditional mode estimates whenever functional stationary ergodic data are considered. To be more precise on the matter, in the ergodic data setting, we…

统计方法学 · 统计学 2014-07-09 Mohamed Chaouch , Naamane Laib , Djamal Louani

Modern biomedical, behavioral and psychological inference about cause-effect relationships respects an ergodic assumption, that is, that mean response of representative samples allow predictions about individual members of those samples.…

神经元与认知 · 定量生物学 2021-05-31 Madhur Mangalam , Damian G. Kelty-Stephen

This paper explores the effects of simulated moments on the performance of inference methods based on moment inequalities. Commonly used confidence sets for parameters are level sets of criterion functions whose boundary points may depend…

计量经济学 · 经济学 2018-04-12 Hiroaki Kaido , Jiaxuan Li , Marc Rysman

There has been much recent interest in two-sided markets and dynamics thereof. In a rather a general discrete-time feedback model, which we show conditions that assure that for each agent, there exists the limit of a long-run average…

最优化与控制 · 数学 2025-04-21 Wynita M. Griggs , Ramen Ghosh , Jakub Marecek , Robert N. Shorten
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