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Two variable speed of light models and their physical consequences are investigated.

天体物理学 · 物理学 2011-04-20 J. W. Moffat

In this paper we develop a perturbation method to predict the rate of occurrence of rare events for singularly perturbed stochastic systems using a probability density function approach. In contrast to a stochastic normal form approach, we…

动力系统 · 数学 2015-06-16 Christoffer R. Heckman , Ira B. Schwartz

Three versions of the Weak Law of Large Numbers are proposed for weakly dependent and generally speaking non-equally distributed random variables, with finite or possibly infinite expectations.

概率论 · 数学 2025-10-07 Alina Akhmiarova , Alexander Veretennikov

Unbinned likelihood fits are frequent in Physics, and often involve complex functions with several components. We discuss the potential pitfalls of situations where the templates used in the fit are not fixed but depend on the event…

数据分析、统计与概率 · 物理学 2014-11-18 Giovanni Punzi

In this paper we obtain some possibilistic variants of the probabilistic laws of large numbers, different from those obtained by other authors, but very natural extensions of the corresponding ones in probability theory. Our results are…

概率论 · 数学 2020-09-15 Sorin G. Gal

In recent years there has been a spate of papers describing systems for probabilisitic reasoning which do not use numerical probabilities. In some cases the simple set of values used by these systems make it impossible to predict how a…

人工智能 · 计算机科学 2013-02-21 Simon Parsons

We show that the weak value of any observable in pre- and post-selected states can be expressed as the sum of the average of the observable in the pre-selected state and an anomalous part. We argue that at a fundamental level the anomalous…

量子物理 · 物理学 2014-10-21 Arun Kumar Pati , Junde Wu

I review heavy quarkonium physics in view of recent experimental results. In particular, I discuss new results on spin singlet states, photon and hadronic transitions, D-states and discovery of yet unexplained narrow X(3872) state.

高能物理 - 唯象学 · 物理学 2009-11-10 Tomasz Skwarnicki

Combining the increasing availability and abundance of healthcare data and the current advances in machine learning methods have created renewed opportunities to improve clinical decision support systems. However, in healthcare risk…

机器学习 · 统计学 2021-06-17 Zidi Xiu , Chenyang Tao , Michael Gao , Connor Davis , Benjamin A. Goldstein , Ricardo Henao

We systematically investigate different versions of variational perturbation theory by forcing not only the first or second but also higher derivatives of the approximant with respect to the variational parameter to vanish. The choice of…

凝聚态物理 · 物理学 2016-11-23 Bodo Hamprecht , Axel Pelster

Scientific explanation often requires inferring maximally predictive features from a given data set. Unfortunately, the collection of minimal maximally predictive features for most stochastic processes is uncountably infinite. In such…

统计力学 · 物理学 2017-05-31 Sarah E. Marzen , James P. Crutchfield

Rare events in non-linear dynamical systems are difficult to sample because of the sensitivity to perturbations of initial conditions and of complex landscapes in phase space. Here we discuss strategies to control these difficulties and…

统计力学 · 物理学 2019-04-18 Jorge C. Leitao , Joao M. V. P. Lopes , Eduardo G. Altmann

A review of various definitions of "compatibility" expressed in terms of ordinary probability, and a discussion of the occurrence of incompatibility (and the related phenomenon of interference) in non-quantal probabilistic systems.

量子物理 · 物理学 2007-05-23 K. A. Kirkpatrick

This paper contains an extensive combinatorial analysis of the single-peaked domain restriction and investigates the likelihood that an election is single-peaked. We provide a very general upper bound result for domain restrictions that can…

计算机科学与博弈论 · 计算机科学 2019-01-30 Marie-Louise Lackner , Martin Lackner

The aim of this paper is to give a short overview for the set of publications considering recently found effect of non-equivalence of multiplicity fluctuations in relativistic gases with globally conserved charge and energy.

核理论 · 物理学 2009-05-29 Viktor V. Begun

Eigenstates of a particle in a localized and unconfined harmonic potential well are investigated. Effects due to the variation of the potential parameters as well as certain results from asymptotic expansions are discussed.

量子物理 · 物理学 2012-10-02 L. B. Castro , A. S. de Castro

This article reviews the concepts and methods of variational path sampling. These methods allow computational studies of rare events in systems driven arbitrarily far from equilibrium. Based upon a statistical mechanics of trajectory space…

化学物理 · 物理学 2025-02-05 Aditya N. Singh , Avishek Das , David T. Limmer

Waves traveling through random media exhibit random focusing that leads to extremely high wave intensities even in the absence of nonlinearities. Although such extreme events are present in a wide variety of physical systems and the…

混沌动力学 · 物理学 2015-06-17 Jakob J. Metzger , Ragnar Fleischmann , Theo Geisel

Here we extend a recent review (Physics Reports {\bf 521}, 205 (2012)) of amplitude death, namely the suppression of oscillations due to the coupling interactions between nonlinear dynamical systems. This is an important emergent phenomenon…

混沌动力学 · 物理学 2014-03-05 Garima Saxena , Nirmal Punetha , Awadhesh Prasad , Ram Ramaswamy

Randomized search algorithms for hard combinatorial problems exhibit a large variability of performances. We study the different types of rare events which occur in such out-of-equilibrium stochastic processes and we show how they cooperate…

统计力学 · 物理学 2009-11-07 Andrea Montanari , Riccardo Zecchina