Results 11 to 20 of about 1,518 (208)

Virial Theorem in Nonlocal Newtonian Gravity

open access: yesUniverse, 2016
Nonlocal gravity is the recent classical nonlocal generalization of Einstein’s theory of gravitation in which the past history of the gravitational field is taken into account. In this theory, nonlocality appears to simulate dark matter.
Bahram Mashhoon
doaj   +2 more sources

The Virial Theorem and Covalent Bonding [PDF]

open access: yesThe Journal of Physical Chemistry A, 2018
A long-held view of the origin of covalent binding is based on the notion that electrostatic forces determine the stability of a system of charged particles and that, therefore, potential energy changes drive the stabilization of molecules. A key argument advanced for this conjecture is the rigorous validity of the virial theorem.
George B. Bacskay   +2 more
openaire   +5 more sources

Short distance modification of the quantum virial theorem

open access: yesPhysics 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   +2 more sources

Quantum complexity and the virial theorem [PDF]

open access: yesJournal of High Energy Physics, 2018
It is conjectured that in the geometric formulation of quantum computing, one can study quantum complexity through classical entropy of statistical ensembles established non-relativistically in the group manifold of unitary operators.
Ning Bao, Junyu Liu
doaj   +2 more sources

Virial Theorem for Nonrelativistic Quantum Fields in D Spatial Dimensions [PDF]

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   +2 more sources

The virial theorem in hydromagnetics

open access: yesJournal of Mathematical Analysis and Applications, 1960
AbstractA 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 prevailing magnetic fields.
Chandrasekhar, S, Chandrasekhar, S.
openaire   +2 more sources

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

A Density Functional Theory-Based Investigation of a pH- and Redox-Driven Tristable [2]Rotaxane in CH<sub>2</sub>Cl<sub>2</sub> Dilute Solution. [PDF]

open access: yesChemistryOpen
A recently proposed pH‐ and redox‐driven tristable [2]rotaxane in CH2Cl2 dilute solution is investigated, combining converged Density Functional Theory (DFT)‐based electronic eigenstates. The theoretical picture that has emerged allows to identify the local supramolecular interaction patterns capable of modulating the mutual position of a DB24C8 ...
Zazza C   +3 more
europepmc   +2 more sources

Generalized virial theorem for contact Hamiltonian systems

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

Ionospheric and boundary contributions to the Dessler-Parker-Sckopke formula for Dst [PDF]

open access: yesAnnales Geophysicae, 2006
The Dessler-Parker-Sckopke formula for the disturbance magnetic field averaged over the Earth's surface, universally used to interpret the geomagnetic Dst index, can be generalized, by using the well known method of deriving it from the virial theorem,
V. M. Vasyliūnas
doaj   +1 more source

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