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Fast and accurate structural dynamics analysis is important for structural design and damage assessment. Structural dynamics analysis leveraging machine learning techniques has become a popular research focus in recent years. Although the…

地球物理 · 物理学 2020-12-29 Yuan Feng , Hexiang Wang , Han Yang , Fangbo Wang

Spontaneous wavefunction collapse models, like the Continuous Spontaneous Localization, are designed to suppress macroscopic superpositions, while preserving microscopic quantum phenomena. An observable consequence of collapse models is…

量子物理 · 物理学 2019-08-27 Antoine Tilloy , Thomas M. Stace

A Cascadia Subduction Zone (CSZ) earthquake will cause widespread damage to numerous lifelines and infrastructure along the northern US west coast. The goal of the presented research is to provide a bottom up estimate of the impact on and…

系统与控制 · 电气工程与系统科学 2022-11-15 Riley Weinmann , Eduardo Cotilla-Sanchez , Ted K. A. Brekken

We apply the principle of energy conservation to the motion of the test particle in gravitational field by requiring that its energy, gained by gravitation, has to be balanced by decrease of its rest mass. Due to the change of mass in…

天体物理学 · 物理学 2007-05-23 V. Majernik

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

The paper discusses a collapse of a self-interacting electrically charged scalar field in the decoupling limit of the dilatonic Gauss-Bonnet gravity. The emerging spacetimes were either non-singular or singular and containing black holes of…

广义相对论与量子宇宙学 · 物理学 2022-10-18 Anna Nakonieczna , Łukasz Nakonieczny

We use both numerical and analytical approaches to study the dynamics of the gravitational collapse in the framework of the relativistic theory of gravitation (RTG). We use various equations of state for the collapsing matter and relatively…

广义相对论与量子宇宙学 · 物理学 2016-09-15 K. V. Antipin , A. I. Dubikovsky , P. K. Silaev

We adopt a simplified model describing the collapse of a spherical thin-shell capacitor to give an analytical description how gravitational energy is converted to both kinetic and electric energies in the gravitational collapse. It is shown…

广义相对论与量子宇宙学 · 物理学 2015-09-10 Remo Ruffini , She-Sheng Xue

This Letter analyzes the sensitivity of event geometry estimators to the initial-state kinematics of hard scattering in proton-lead collisions. This analysis uses dijets as a proxy for the parton-parton scattering configuration, correlating…

核实验 · 物理学 2026-05-14 ATLAS Collaboration

A typical feature of spontaneous collapse models which aim at localizing wavefunctions in space is the violation of the principle of energy conservation. In the models proposed in the literature the stochastic field which is responsible for…

量子物理 · 物理学 2007-05-23 Angelo Bassi , Emiliano Ippoliti , Bassano Vacchini

It is argued in the literature that gravity is an emergent phenomenon and is a statistical tendency for a gravitational system to attain the maximal entropy state which maintains the holographic principle. In this paper, we show that…

广义相对论与量子宇宙学 · 物理学 2014-01-08 Qiao-Jun Cao

It is well known that the late-time behaviour of gravitational collapse is {\it dominated} by an inverse power-law decaying tail. We calculate {\it higher-order corrections} to this power-law behaviour in a spherically symmetric…

广义相对论与量子宇宙学 · 物理学 2010-11-19 Shahar Hod

We interpret the probability rule of the CSL collapse theory to mean that the scalar field which causes collapse is the grvitational curvature scalar with two sources, the expectation value of the mass density and a white noise fluctuating…

量子物理 · 物理学 2009-10-28 Philip Pearle , Euan Squires

This article begins by putting forth a model that shows how the storage and retrieval of information on a wave function that involves quantum entanglement behaves similarly to the concepts of length contraction and time dilation,…

综合物理 · 物理学 2023-09-01 Christopher I. Timms

While it is widely believed that the gravitational collapse of a sufficiently large mass will lead to a density singularity and an event horizon, we propose that this never happens when quantum effects are taken into account. In particular,…

高能天体物理现象 · 物理学 2015-06-16 George Chapline , James Barbieri

Observations show that the expansion of the Universe is accelerating. This requires that the dominant constituent of matter in the Universe has some unusual properties like negative pressure. This exotic component has been given the name…

科普物理 · 物理学 2019-01-17 Manvendra Pratap Rajvanshi , Tuneer Chakraborty , J. S. Bagla

We discuss the finite-time collapse, also referred as blow-up, of the solutions of a discrete nonlinear Schr\"{o}dinger (DNLS) equation incorporating linear and nonlinear gain and loss. This DNLS system appears in many inherently discrete…

斑图形成与孤子 · 物理学 2019-01-30 G. Fotopoulos , N. I. Karachalios , V. Koukouloyannis , K. Vetas

In this note, we numerically and theoretically analyze the physical mechanisms controlling the gravity-induced spreading of viscoplastic elliptical metric objects on a sticky solid surface (without sliding). The two-dimensional collapsing…

流体动力学 · 物理学 2024-10-07 Kindness Isukwem , Anselmo Pereira

In any domain involving some stressed solids, that is, from seismology to general engineering, the strength of matter is a paramount feature to understand. We here discuss the ability of a simple thermally activated sub-critical model, that…

The mass--energy formula of black holes implies that up to 50% of the energy can be extracted from a static black hole. Such a result is reexamined using the recently established analytic formulas for the collapse of a shell and expression…

天体物理学 · 物理学 2009-11-07 Remo Ruffini , Luca Vitagliano