Results 31 to 40 of about 101,189 (313)

Production of photons by the parametric resonance in the dynamical Casimir effect [PDF]

open access: yes, 1997
We calculate the number of photons produced by the parametric resonance in a cavity with vibrating walls. We consider the case that the frequency of vibrating wall is $n \omega_1 (n=1,2,3,...)$ which is a generalization of other works considering only $2
A. Lambrecht   +15 more
core   +3 more sources

Accurate Absorption Energy Calculations in Solution Using the Reference Interaction Site Model Self-Consistent Field Including the Constrained Spatial Electron Density Distribution

open access: yesJ, 2021
The solvation effect is an important factor determining the properties of molecules in solution. The reference interaction site model (RISM) is a powerful method to treat the solvation effect with pair-correlation functions, such as a radial distribution
Daisuke Yokogawa
doaj   +1 more source

ON THE LARGE ORDER ASYMPTOTICS OF THE WAVE FUNCTION PERTURBATION THEORY [PDF]

open access: yes, 1995
The problem of finding the large order asymptotics for the eigenfunction perturbation theory in quantum mechanics is studied. The relation between the wave function argument x and the number of perturbation theory order k that allows us to construct the ...
Argyres   +10 more
core   +2 more sources

A path integral for classical dynamics, entanglement, and Jaynes-Cummings model at the quantum-classical divide [PDF]

open access: yes, 2010
The Liouville equation differs from the von Neumann equation 'only' by a characteristic superoperator. We demonstrate this for Hamiltonian dynamics, in general, and for the Jaynes-Cummings model, in particular. -- Employing superspace (instead of Hilbert
Adler S. L.   +7 more
core   +1 more source

Chemists Without Knowing It?

open access: yesSubstantia, 2022
This paper considers aspects of the chemistry-physics relationship from a historical perspective and with a focus on the entrance of quantum mechanics in twentieth-century chemistry.
Helge Kragh
doaj   +1 more source

Duality in Perturbation Theory and the Quantum Adiabatic Approximation [PDF]

open access: yes, 1998
Duality is considered for the perturbation theory by deriving, given a series solution in a small parameter, its dual series with the development parameter being the inverse of the other. A dual symmetry in perturbation theory is identified.
A. Joye   +16 more
core   +3 more sources

Recent Developments in the Theory of Tunneling [PDF]

open access: yes, 1997
Path-integral approach in imaginary and complex time has been proven successful in treating the tunneling phenomena in quantum mechanics and quantum field theories.
't Hooft   +53 more
core   +2 more sources

Analogue Hawking radiation and quantum soliton evaporation in a superconducting circuit

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
Hawking radiation is one of the most intriguing and elusive predictions of quantum field theory in curved spacetime. Previous works simulating Hawking radiation have been mostly based on Unruh’s scenario, where the propagation of quantum field in ...
Zehua Tian, Jiangfeng Du
doaj   +1 more source

The Exact Nonrelativistic Energy Eigenvalues for Modified Inversely Quadratic Yukawa Potential Plus Mie-type Potential [PDF]

open access: yesЖурнал нано- та електронної фізики, 2017
The modified theories of noncommutative quantum mechanics have engrossed much attention in the last decade, especially its application to the fundamental three equations: Schrödinger, Klein-Gordon and Dirac equations.
Abdelmadjid Maireche
doaj   +1 more source

On asymptotic perturbation theory for quantum mechanics [PDF]

open access: yesLong Time Behaviour of Classical and Quantum Systems, 2001
Singular perturbation theory for quantum mechanics is considered in a framework generalizing the spectral concentration theory. Under very general conditions, asymptotic estimations on the Rayleigh–Schrödinger expansions of the perturbed spectral projections are obtained. As a consequence almost invariant subspaces of exponential order are constructed.
openaire   +2 more sources

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