Results 11 to 20 of about 18,545 (191)

The Virial Theorem and the Ground State Problem in Polaron Theory

Journal of Experimental and Theoretical Physics, 2012
The virial theorem for the translation-invariant theory of a polaron [3] is discussed. It is shown that, in [3], Tulub made a nonoptimal choice of variational parameters in the strong-coupling limit, which led to the violation of the virial relations ...
Kashirina, N. I., Lakhno, V. D., Tulub, A. V.   +2 more
core   +3 more sources

Generalized Virial Theorem and Pressure Relation for a strongly correlated Fermi gas

Annals of Physics, 2008
For a two-component Fermi gas in the unitarity limit (ie, with infinite scattering length), there is a well-known virial theorem, first shown by J. E. Thomas et al, Phys. Rev. Lett. 95, 120402 (2005).
Dalfovo, Partridge, Partridge, Petrov, Shin, Shin, Shina Tan, Thomas, Werner, Zwierlein   +9 more
core   +3 more sources

Quantum dissipation and the virial theorem

Physica A: Statistical Mechanics and its Applications, 2023
v2: Revised version to appear in Physica ...
Aritra Ghosh, Malay Bandyopadhyay
openaire   +5 more sources

A Cosmic Virial Theorem

The Astrophysical Journal, 1976
A new type of cosmic virial theorem is derived, representing a relation among the two-point and three-point galaxy correlation functions and the mean square relative peculiar velocity 〈v 2(r)〉 averaged over pairs of galaxies separated by distancer. The two correlation functions seem to be fairly well known, but 〈v 2(r)〉 at best is only very roughly ...
openaire   +3 more sources

Clarification of Some Bonding Concepts: Virial Theorem, Electron Pair Repulsion, and Rotational Barriers. [PDF]

J Comput Chem
The electrons of the overlapping, basically neutral fragments do not cause electrostatic repulsion but attraction by the pulling nuclei. The Pauli‐repulsive quantum kinetic increase of the energy density in the overlapping region always leads to reactions of the geometric structure and the electronic wave function. According to the virial theorem, this
Schwarz WHE, Frenking G, Pan S.
europepmc   +2 more sources

A Density Functional Theory‐Based Investigation of a pH‐ and Redox‐Driven Tristable [2]Rotaxane in CH2Cl2 Dilute Solution [PDF]

ChemistryOpen
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, Sanna N, Borocci S, Grandinetti F.   +3 more
europepmc   +2 more sources

The Fractional Virial Theorem [PDF]

Fractional Differential Calculus, 2011
Summary: Fractional calculus is an emerging field and has many applications in several fields of science and engineering. One of the major issues in this field is to apply this type of calculus to the real world applications. In this paper, the fractional generalization of the classical virial theorem is presented.
Baleanu, Dumitru, Mihaela-Baleanu, Cristina, Golmankhaneh, Alireza Khalili, Golmankhaneh, Ali Khalili   +3 more
openaire   +1 more source

Wave-Partition-Governed Dual-Site Spallation in Single Crystals. [PDF]

Adv Sci (Weinh)
Crystalline anisotropy shapes shock‐wave propagation and the resulting damage evolution in single crystals. Large‐scale molecular dynamics and damage modeling uncover a dual‐spallation mechanism driven by anisotropic elasticplastic wave separation, which mitigates damage accumulation.
Zhu Y, Qian S, Qiu L, Hu J, Luo G, Shen Q, Tong Q.   +6 more
europepmc   +2 more sources

Virial theorems and virial stresses of micropolar media [PDF]

Journal of Micromechanics and Molecular Physics, 2021
A generalization of virial theorems and virial stresses to micropolar continuum mechanics is explored. The linear momentum balance in dyadic product with translation leads to (i) the first virial theorem of micropolar continuum mechanics involving the infinite-time limit of the kinetic translational energy and (ii) a classical formula for computing ...
openaire   +2 more sources

Quantum complexity and the virial theorem

Journal 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   +1 more source