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相关论文: Do dynamical reduction models imply that arithmeti…

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We consider the domain of applicability of general relativity (GR), as a classical theory of gravity, by considering its applications to a variety of settings of physical interest as well as its relationship with real observations. We argue…

广义相对论与量子宇宙学 · 物理学 2022-10-12 Reza Tavakol , Roustam Zalaletdinov

In view of the arguments put forward by Clifton and Monton [1999] in a recent preprint, we reconsider the alleged conflict of dynamical reduction models with the enumeration principle. We prove that our original analysis of such a problem…

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

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

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

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 report presents an exhaustive review of the recent attempt to overcome the difficulties that standard quantum mechanics meets in accounting for the measurement (or macro-objectification) problem, an attempt based on the consideration of…

量子物理 · 物理学 2009-11-10 Angelo Bassi , GianCarlo Ghirardi

While there are many applications of ML to scientific problems that look promising, visuals can be deceiving. Using numerical analysis techniques, we rigorously quantify the accuracy, convergence rates, and generalization bounds of certain…

机器学习 · 计算机科学 2026-05-27 Alejandro Francisco Queiruga , Theo Gutman-Solo , Shuai Jiang

General relativity is highly successful in explaining a wide range of gravitational phenomena including the gravitational waves emitted by binary systems and the shadows cast by supermassive black holes. From a modern perspective the theory…

广义相对论与量子宇宙学 · 物理学 2024-07-26 Jesse Daas , Cristobal Laporte , Frank Saueressig , Tim van Dijk

I review the meaning of General Relativity (GR), viewed as a dynamical field, rather than as geometry, as effected by the 1958-61 anti-geometrical work of ADM. This very brief non-technical summary, is intended for historians.

物理学史与哲学 · 物理学 2021-07-07 S. Deser

We consider both geometric and measure-theoretic shrinking targets for ergodic maps, investigating when they are visible or invisible. Some Baire category theorems are proved, and particular constructions are given when the underlying map…

动力系统 · 数学 2019-12-18 Joseph Rosenblatt , Mrinal Kanti Roychowdhury

It is mandatory to know how to operationally define and translate a reference frame into mathematics, in order that a physical interpretation of theory calculations in terms of observational data is possible. The situation is particularly…

量子物理 · 物理学 2026-03-05 Thomas Thiemann

Carrying out a research program outlined by John S. Bell in 1987, we arrive at a relativistic version of the Ghirardi-Rimini-Weber (GRW) model of spontaneous wavefunction collapse. The GRW model was proposed as a solution of the measurement…

量子物理 · 物理学 2007-05-23 Roderich Tumulka

Inspired by possible connections between gravity and foundational question in quantum theory, we consider an approach for the adaptation of objective collapse models to a general relativistic context. We apply these ideas to a list of open…

广义相对论与量子宇宙学 · 物理学 2017-01-12 Elias Okon , Daniel Sudarsky

The Mass Density approach to GRW (GRWm for short) has been widely discussed in the quantum foundations literature. A crucial feature of GRWm is the introduction of a relation of accessibility for mass, which allows to explain the…

量子物理 · 物理学 2022-01-10 Cristian Mariani

There are a number of approaches to testing General Relativity (GR) on linear scales using parameterized frameworks for modifying cosmological perturbation theory. It is sometimes assumed that the details of any given parameterization are…

宇宙学与河外天体物理 · 物理学 2015-05-30 Joe Zuntz , Tessa Baker , Pedro Ferreira , Constantinos Skordis

The increasing precision of cosmological data provides us with an opportunity to test general relativity (GR) on the largest accessible scales. Parameterizing modified gravity models facilitates the systematic testing of the predictions of…

宇宙学与河外天体物理 · 物理学 2013-11-26 Ali Narimani , Douglas Scott

The Ghirardi-Rimini-Weber (GRW) theory is a physical theory that, when combined with a suitable ontology, provides an explanation of quantum mechanics. The so-called collapse of the wave function is problematic in conventional quantum…

数学物理 · 物理学 2009-04-09 Roderich Tumulka

Ever since we have been in the possession of quantum theories without observers, such as Bohmian mechanics or the Ghirardi-Rimini-Weber (GRW) theory of spontaneous wave function collapse, a major challenge in the foundations of quantum…

量子物理 · 物理学 2009-11-13 Roderich Tumulka

Due to the effectiveness of using machine learning in physics, it has been widely received increased attention in the literature. However, the notion of applying physics in machine learning has not been given much awareness to. This work is…

机器学习 · 计算机科学 2022-11-04 Benyamin Ghojogh , Smriti Sharma

While it is usually stated that dimensional regularization (DR) has no direct physical interpretation, consensus has recently grown on the idea that it might be endowed with special physical properties that would provide the mechanism that…

高能物理 - 理论 · 物理学 2022-09-21 Carlo Branchina , Vincenzo Branchina , Filippo Contino , Neda Darvishi
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