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In this short communication we address the problem of reducibility in a highly excited Lennard-Jones system. We show that the probability of emitting $n$ fragments can be described in terms of a single probability through the binomial…

核理论 · 物理学 2008-11-26 M. J. Ison , C. O. Dorso

The notion of a physical collapse of the wave function is embodied in dynamical collapse models. These involve a modification of the unitary evolution of the wave function such as to give a dynamical account of collapse. The resulting…

量子物理 · 物理学 2017-04-12 Daniel Bedingham , Owen Maroney

We analyze the performance of different resampling strategies for the regularized particle filter regarding parameter estimation. We show in particular, building on analytical insight obtained in the linear Gaussian case, that resampling…

统计计算 · 统计学 2017-05-12 Pierre Carmier , Olexiy Kyrgyzov , Paul-Henry Cournède

Next year we will celebrate 100 years of the cosmological term, $\Lambda$, in Einstein's gravitational field equations, also 50 years since the cosmological constant problem was first formulated by Zeldovich, and almost about two decades of…

宇宙学与河外天体物理 · 物理学 2016-12-14 Joan Sola

Data collection at a massive scale is becoming ubiquitous in a wide variety of settings, from vast offline databases to streaming real-time information. Learning algorithms deployed in such contexts must rely on single-pass inference, where…

统计方法学 · 统计学 2012-01-27 Christoforos Anagnostopoulos , Robert B. Gramacy

To-date, the most elaborated attempt to complete quantum mechanics by the addition of hidden variables is the de Broglie-Bohm (pilot wave) theory (dBBT). It endows particles with definite positions at all times. Their evolution is governed…

量子物理 · 物理学 2025-03-12 Johannes Fankhauser , Patrick M. Dürr

In a recent Letter [PRL 113, 120404 (2014)] Ferrie and Combes claimed to show "that weak values are not inherently quantum, but rather a purely statistical feature of pre- and post-selection with disturbance." In this Comment I will show…

量子物理 · 物理学 2014-09-19 Lev Vaidman

Traversals of data structures are ubiquitous in programming. Consequently, it is important to be able to characterise those structures that are traversable and understand their algebraic properties. Traversable functors have been…

编程语言 · 计算机科学 2012-02-15 Mauro Jaskelioff , Ondrej Rypacek

Darwinian evolution can be modeled in general terms as a flow in the space of fitness (i.e. reproductive rate) distributions. In the diffusion approximation, Tsimring et al. have showed that this flow admits "fitness wave" solutions:…

种群与进化 · 定量生物学 2017-01-30 Matteo Smerlak , Ahmed Youssef

We show that the authors in the title have erred in claiming that our axiom FIN is false by conflating it with Bell locality. We also argue that the predictions of quantum mechanics, and in particular EPR, are fully Lorentz invariant,…

量子物理 · 物理学 2009-11-13 John Conway , Simon Kochen

Louveau and Rosendal [5] have shown that the relation of bi-embeddability for countable graphs as well as for many other natural classes of countable structures is complete under Borel reducibility for analytic equivalence relations. This…

逻辑 · 数学 2011-12-05 Sy-David Friedman , Luca Motto Ros

We present a theory of modified reduced dynamics in the presence of counting fields. Reduced dynamics techniques are useful for describing open quantum systems at long emergent timescales when the memory timescales are short. However, they…

量子物理 · 物理学 2022-08-24 Felix A. Pollock , Emanuel Gull , K. Modi , Guy Cohen

A number of distributions that arise in statistical applications can be expressed in the form of a weighted density: the product of a base density and a nonnegative weight function. Generating variates from such a distribution may be…

统计方法学 · 统计学 2025-03-18 Andrew M. Raim , James A. Livsey , Kyle M. Irimata

Non-interferometric experiments have been successfully employed to constrain models of spontaneous wave function collapse, which predict a violation of the quantum superposition principle for large systems. These experiments are grounded on…

量子物理 · 物理学 2023-06-22 Sandro Donadi , Luca Ferialdi , Angelo Bassi

For any countable group $\Gamma$ satisfying the ``weak Rohlin property'', and for any dynamical property, the set of $\Gamma$-actions with that property is either residual or meager. The class of groups with the weak Rohlin property…

动力系统 · 数学 2009-09-25 Eli Glasner , Jonathan King

It is shown that the interpretation of the electron wave function as a classical field is untenable because the so called energy-density defined in \cite{seb} takes on negative values in some regions. The claim that the velocity of the…

量子物理 · 物理学 2022-03-14 Iwo Bialynicki-Birula , Zofia Bialynicka-Birula

In an expanding universe the vacuum energy density \rho_{\Lambda} is expected to be a dynamical quantity. In quantum field theory in curved space-time \rho_{\Lambda} should exhibit a slow evolution, determined by the expansion rate of the…

高能物理 - 唯象学 · 物理学 2015-06-04 Harald Fritzsch , Joan Sola

Decision trees are a popular family of models due to their attractive properties such as interpretability and ability to handle heterogeneous data. Concurrently, missing data is a prevalent occurrence that hinders performance of machine…

机器学习 · 计算机科学 2020-07-01 Pasha Khosravi , Antonio Vergari , YooJung Choi , Yitao Liang , Guy Van den Broeck

Angelini, Pellicoro, and Stramaglia [Phys. Rev. E {\bf 60}, R5021 (1999), cond-mat/9907149] (APS) claim that the phase ordering of two-dimensional systems of sequentially-updated chaotic maps with conserved ``order parameter'' does not…

凝聚态物理 · 物理学 2009-10-31 Julien Kockelkoren , Hugues Chaté

Recent criticism of higher-dimensional extensions of Einstein's theory is considered. This may have some justification as regards string theory, but is misguided as applied to five-dimensional theories with a large extra dimension. Such…

广义相对论与量子宇宙学 · 物理学 2014-12-22 Paul S. Wesson