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We analyze a recent paper in which an alleged devastating criticism to the so called GRW proposal to account for the objectification of the properties of macroscopic systems has been presented and we show that the author has not taken into…

量子物理 · 物理学 2007-05-23 GianCarlo Ghirardi , Angelo Bassi

In a previous article (cf. quant-ph/9905065) we argued that, while Lewis is correct that the enumeration principle fails in dynamical wavepacket reduction theories, one need not following Lewis in rejecting these theories. Because the…

量子物理 · 物理学 2007-05-23 Rob Clifton , Bradley Monton

Peter Lewis ([1997]) has recently argued that the wavefunction collapse theory of GRW (Ghirardi, Rimini, and Weber [1986]) can only solve the problem of wavefunction tails at the expense of predicting that arithmetic does not apply to…

量子物理 · 物理学 2007-05-23 Rob Clifton , Bradley Monton

Empirical risk minimization (ERM) is known in practice to be non-robust to distributional shift where the training and the test distributions are different. A suite of approaches, such as importance weighting, and variants of…

机器学习 · 计算机科学 2023-02-08 Runtian Zhai , Chen Dan , Zico Kolter , Pradeep Ravikumar

Modified Newtonian Dynamics (MOND) is a framework of theories that adjust Newton's laws of gravity to explain effects such as galactic rotation anomalies, offering an alternative to dark matter. This essay examines the justification of MOND…

物理学史与哲学 · 物理学 2025-12-03 Antonis Antoniou , Lorenzo Lorenzetti

Ghirardi, Grassi, Butterfield, and Fleming have previously argued that two distinct formulations of dynamical reduction (GRW) theories have distinct non-local properties: one (the "non-linear" formulation) violates Parameter Independence…

量子物理 · 物理学 2010-10-20 Travis Norsen

MOND has limelighted the fact that Newtonian dynamics (ND) and general relativity (GR) have not been verified at accelerations below MOND's $a_0$. In particular, we do not know that all the principles underlying ND or GR apply below $a_0$.…

广义相对论与量子宇宙学 · 物理学 2019-10-22 Mordehai Milgrom

We review the major achievements of the dynamical reduction program, showing why and how it provides a unified, consistent description of physical phenomena, from the microscopic quantum domain to the macroscopic classical one. We discuss…

量子物理 · 物理学 2008-11-26 A. Bassi

The aim of this paper is to compare various criteria leading to the central limit theorem and the weak invariance principle. These criteria are the martingale-coboundary decomposition developed by Gordin in Dokl. Akad. Nauk SSSR 188 (1969),…

概率论 · 数学 2008-12-18 Olivier Durieu , Dalibor Volný

This paper has a flaw in an argument that uses the weak-* convergence of measures. The paper was replaced by "Entropy and Its Variational Principle for Locally Compact Metrizable Systems", by the same authors.

动力系统 · 数学 2015-11-09 André Caldas , Mauro Patrão

The MOND paradigm posits a departure from standard Newtonian dynamics, and from General Relativity, in the limit of small accelerations. The resulting modified dynamics aim to account for the mass discrepancies in the universe without…

宇宙学与河外天体物理 · 物理学 2011-12-09 Mordehai Milgrom

I discuss open theoretical questions pertaining to the modified dynamics (MOND)--a proposed alternative to dark matter, which posits a breakdown of Newtonian dynamics in the limit of small accelerations. In particular, I point the reasons…

天体物理学 · 物理学 2009-11-07 Mordehai Milgrom

The range mode problem is a fundamental problem and there is a lot of work about it. There is also some work for the dynamic version of it and the enumerating version of it, but there is no previous research about the dynamic and…

数据结构与算法 · 计算机科学 2021-03-10 Tetto Obata

The pursuit of robustness has recently been a popular topic in reinforcement learning (RL) research, yet the existing methods generally suffer from efficiency issues that obstruct their real-world implementation. In this paper, we introduce…

机器学习 · 计算机科学 2024-04-15 Yang Hu , Haitong Ma , Bo Dai , Na Li

The combination of GR and the Standard Model disagrees with numerous observations on scales from our Solar System up. In the concordance model of cosmology, these contradictions are removed or alleviated by the introduction of three…

广义相对论与量子宇宙学 · 物理学 2012-01-10 Glenn D. Starkman

Aharonov and Anandan's claim that the notion of ``proper mixture'' is improper is shown to be unjustified. The point is made that if a purely operationalist standpoint is taken the three difficulties these authors describe relatively to the…

量子物理 · 物理学 2007-05-23 B. d'Espagnat

Consistent Recalibration models (CRC) have been introduced to capture in necessary generality the dynamic features of term structures of derivatives' prices. Several approaches have been suggested to tackle this problem, but all of them,…

计算金融 · 定量金融 2021-07-02 Matteo Gambara , Josef Teichmann

Mathematical properties of the historical GDP/cap distributions are discussed and explained. These distributions are frequently incorrectly interpreted and the Unified Growth Theory is an outstanding example of such common misconceptions.…

综合金融 · 定量金融 2015-12-04 Ron W Nielsen

We give a conceptual exposition of aspects of gravitational radiation, especially in relation to energy. Our motive for doing so is that the strong analogies with electromagnetic radiation seem not to be widely enough appreciated. In…

物理学史与哲学 · 物理学 2023-03-27 Henrique Gomes , Carlo Rovelli

We investigate the Di\'osi-Penrose (DP) proposal for connecting the collapse of the wave function to gravity. The DP model needs a free parameter, acting as a cut-off to regularize the dynamics, and the predictions of the model highly…

量子物理 · 物理学 2015-07-20 Mohammad Bahrami , Andrea Smirne , Angelo Bassi
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