Results 11 to 20 of about 338,762 (168)

Virial theorem and gravitational equilibrium with a cosmological constant [PDF]

open access: yesMomento, 2001
Starting from the Newtonian limit of Einstein's equations in the presence of a positive cosmological constant, we obtain a new version of the virial theorem and a condition for gravitational equilibrium. Such a condition takes the form ρ > λρvac, where ρ
Marek Nowakowski   +2 more
doaj   +1 more source

Generalized virial theorem for contact Hamiltonian systems [PDF]

open access: yes, 2023
We formulate and study a generalized virial theorem for contact Hamiltonian systems. Such systems describe mechanical systems in the presence of simple dissipative forces such as Rayleigh friction, or the vertical motion of a particle falling through a ...
Ghosh, Aritra
core   +1 more source

The virial theorem in hydromagnetics [PDF]

open access: yes, 1960
A tensor form of the virial theorem appropriate for configurations in hydromagnetic equilibrium is obtained. Various elementary consequences of this theorem are derived such as the impossibility of spherical symmetry for static configurations with ...
Chandrasekhar, S, Chandrasekhar, S.
core   +1 more source

Bootstrap bounds on D0-brane quantum mechanics

open access: yesJournal of High Energy Physics, 2023
We derive simple bootstrap bounds on correlation functions of the BFSS matrix theory/D0-brane quantum mechanics. The result strengthens and extends Polchinski’s virial theorem bound to finite energies and gives the first non-trivial bound on ⟨Tr X 2 ...
Henry W. Lin
doaj   +1 more source

Analysis of Multipolar Linear Paul Traps for Ion–Atom Ultracold Collision Experiments

open access: yesAtoms, 2021
We evaluate the performance of multipole, linear Paul traps for the purpose of studying cold ion–atom collisions. A combination of numerical simulations and analysis based on the virial theorem is used to draw conclusions on the differences that result ...
M. Niranjan   +2 more
doaj   +1 more source

Virial Theorem for Nonrelativistic Quantum Fields in D Spatial Dimensions

open access: yesAdvances in High Energy Physics, 2015
The virial theorem for nonrelativistic complex fields in D spatial dimensions and with arbitrary many-body potential is derived, using path-integral methods and scaling arguments recently developed to analyze quantum anomalies in low-dimensional systems.
Chris L. Lin, Carlos R. Ordóñez
doaj   +1 more source

Cosmological consequences hydrodynamic vortex: vortex and dark energy in the space

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2016
On the basis of synthesis of several exact solutions of the hydrodynamic Euler's equations for cylindrical and spherical vortex currents it is established that not spiral currents integral of energy contain the additional member with physical sense of ...
V. I. Perehrest
doaj   +1 more source

On storm weakening during substorm expansion phase [PDF]

open access: yesAnnales Geophysicae, 1997
Iyemori and Rao recently presented evidence that the strength of a magnetic storm, as measured by -Dst, weakens, or its rate of growth slows, during the substorm expansion phase.
G. L. Siscoe, H. E. Petschek
doaj   +1 more source

Edgewise Bending Strain in Helical Coils With Geodesic Windings Based on Virial Theorem [PDF]

open access: yes, 2016
0000-0003-1134-4389Distributions of edgewise bending strain in helical coils with the geodesic winding based on virial theorem are analyzed theoretically and numerically.
Tsuji-Iio, Shunji   +7 more
core   +1 more source

VIRIAL THEOREM LIMITATIONS FOR THE TOROIDAL MAGNETIC ENERGY STORAGE CAUSED BY THE LOCATION OF SUPPORT STRUCTURE ELEMENTS AND THEIR MECHANICAL PROPERTIES

open access: yesТехнічна електродинаміка, 2022
Based on the virial theorem, the influence of the following factors to characteristics of mechanical support systems of toroidal magnetic energy storage is considered: the configuration of the coils, the support system elements location under compressive
Ю.М. Васецький
doaj   +1 more source

Home - About - Disclaimer - Privacy