Results 251 to 260 of about 35,127 (280)

Quantum Stabilization in Anharmonic Crystals

Physical Review Letters, 2003
For a model of interacting quantum particles of mass m oscillating in a double-well crystalline field, a mechanism of its stabilization by quantum effects is described. In particular, a stability condition involving m, the interaction intensity, and the parameters of the crystalline field is given.
Albeverio, Sergio, Kondratiev, Yuri, Kozitsky, Yuri, Röckner, Michael   +3 more
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A New Anharmonic Factor and EXAFS Including Anharmonic Contributions

Journal of the Physical Society of Japan, 2003
A new anharmonic factor and the extended X-ray absorption fine structure (EXAFS) including anharmonic contributions have been developed based on the cumulant expansion and the single-shell model. Analytical expressions for the anharmonic contributions to the amplitude and to the phase of the EXAFS have been derived. The EXAFS and its parameters contain
Nguyen Van Hung, Nguyen Ba Duc, Ronald R. Frahm   +2 more
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Nonadiabatic anharmonic electron transfer

The Journal of Chemical Physics, 2013
The effect of an inner sphere, local mode vibration on an electron transfer is modeled using the nonadiabatic transition probability (rate) expression together with both the anharmonic Morse and the harmonic oscillator potential. For an anharmonic inner sphere mode, a variational analysis uses harmonic oscillator basis functions to overcome the ...
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Visibility for anharmonic fringes

Journal of Physics A: Mathematical and General, 2002
Summary: We examine a new approach to the visibility of interference fringes defined as the distance \(L^2\) to the uniform distribution. We show that this approach is superior to the standard approach when examining anharmonic fringes, while they coincide for harmonic fringes. We demonstrate the close relationship between this formalism and other well-
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Anharmonic Oscillator

Physical Review D, 1973
P. Lu, S. S. Wald, B. L. Young
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Anharmonic Grassmann oscillator

Physical Review D, 1989
, Delbourgo, , Jones, , White
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The anharmonic oscillator

Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1978
Accurate eigenvalues and eigenfunctions of the anharm onic oscillator ( H = p 2 + x 2 + λx 4 , λ > 0) and the quartic oscillator ( H = p 2 + x
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Anharmonic Oscillator

Physical Review, 1969
Carl M. Bender, Tai Tsun Wu
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ANHARMONIC EFFECTS

Solid State Communications, 1963
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Anharmonic forced Rayleigh scattering

Physical Review A, 1986
, McGraw, , Harris
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