Results 1 to 10 of about 18,545 (191)

Violation of the virial theorem and generalized equipartition theorem for logarithmic oscillators serving as a thermostat [PDF]

Scientific Reports, 2017
A logarithmic oscillator has been proposed to serve as a thermostat recently since it has a peculiar property of infinite heat capacity according to the virial theorem.
Kai Chen, Dahai He, Hong Zhao
doaj   +2 more sources

Clausius' Virial Theorem [PDF]

Nature, 1895
I THINK the fort will not surrender at Colonel Basevi's summons. We have and if we put x = u and = v, this may be written and if you please so to write it. This corresponds to Colonel Basevi's equation, except that I have written v for his x.
exaly   +11 more sources

Mesoscopic virial equation for nonequilibrium statistical mechanics [PDF]

New Journal of Physics, 2016
We derive a class of mesoscopic virial equations governing energy partition between conjugate position and momentum variables of individual degrees of freedom.
G Falasco, F Baldovin, K Kroy, M Baiesi
doaj   +3 more sources

Short distance modification of the quantum virial theorem

Physics Letters B, 2017
In this letter, we will analyse the deformation of a semi-classical gravitational system from minimal measurable length scale. In the semi-classical approximation, the gravitational field will be analysed as a classical field, and the matter fields will ...
Qin Zhao, Mir Faizal, Zaid Zaz
doaj   +4 more sources

Recent Advances in Cartesian-Grid DFT in Atoms and Molecules [PDF]

Frontiers in Chemistry, 2022
In the past several decades, density functional theory (DFT) has evolved as a leading player across a dazzling variety of fields, from organic chemistry to condensed matter physics.
Sangita Majumdar, Amlan K. Roy
doaj   +2 more sources

Parametrized post-Newtonian virial theorem [PDF]

Classical and Quantum Gravity, 2012
Using the parametrized post-Newtonian equations of hydrodynamics, we derive the tensor form of the parametrized post-Newtonian virial theorem.Comment: 10 pages, submitted to ...
Collins G W, Eddington A S, Mahmood Roshan, Zwicky F   +3 more
core   +2 more sources

Gravitational Hamiltonian Systems and the Retarded Gravity Inequality [PDF]

Entropy
Gravity and electromagnetic interactions are the only fundamental physical interactions (outside the nuclear domain). In this work, we shall concentrate on Hamiltonians containing gravitational interaction, which according to general relativity must be ...
Asher Yahalom
doaj   +2 more sources

Basic Stellar Physics [PDF]

EPJ Web of Conferences, 2023
Polytropes, Virial theorem, evolutionary time scales, degrees of freedom, radiative transport, molecular weight, degeneracy, Jeans mass, and Eddington luminosity are basic ingredients to describe the physics of stars.
Palmerini S.
doaj   +1 more source

Variational Methods for Atoms and the Virial Theorem

Atoms, 2022
In the case of the one-electron Dirac equation with a point nucleus, the virial theorem (VT) states that the ratio of the kinetic energy to potential energy is exactly −1, a ratio that can be an independent test of the accuracy of a computed solution ...
Charlotte Froese Fischer, Michel Godefroid   +1 more
doaj   +1 more source

Virial theorem in scalar tensor fourth order gravity

European Physical Journal C: Particles and Fields, 2021
In this paper, we study, in the Newtonian limit, the virial theorem in the context of a scalar tensor fourth order gravity. In particular, we show, that for a isolated galaxy in viral equilibrium, a specific class of scalar tensor fourth order gravity, i.
A. Capolupo, G. Lambiase, A. Stabile, An. Stabile   +3 more
doaj   +1 more source