Results 21 to 30 of about 2,376 (125)

Periodic orbit quantization of chaotic systems with strong pruning

open access: yes, 2002
The three-disk system, which for many years has served as a paradigm for the usefulness of cycle expansion methods, represents an extremely hard problem to semiclassical quantization when the disks are moved closer and closer together, since (1) pruning ...
Aurich   +19 more
core   +1 more source

Calculation of the Density of States Using Discrete Variable Representation and Toeplitz Matrices

open access: yes, 1995
A direct and exact method for calculating the density of states for systems with localized potentials is presented. The method is based on explicit inversion of the operator $E-H$.
  +21 more
core   +1 more source

Newly discovered documents about Grigor Zohrap’s activity

open access: yesBanber Arevelagitut'yan Instituti
After the publication of the monograph “The chronicle of the life and activities of Grigor Zohrap” by Prof. Albert Sharuryan it would seem that all episodes of Zohrap’s life had been revealed.
Miqayel Martirosyan
doaj   +6 more sources

Pseudo-time Schroedinger equation with absorbing potential for quantum scattering calculations

open access: yes, 2001
The Schroedinger equation with an energy-dependent complex absorbing potential, associated with a scattering system, can be reduced for a special choice of the energy-dependence to a harmonic inversion problem of a discrete pseudo-time correlation ...
A. J. F. Siegert   +19 more
core   +1 more source

Decimation and Harmonic Inversion of Periodic Orbit Signals

open access: yes, 1999
We present and compare three generically applicable signal processing methods for periodic orbit quantization via harmonic inversion of semiclassical recurrence functions.
Berry M V   +21 more
core   +4 more sources

The category of time in the poetry of O. Mandelstam

open access: yesRUDN Journal of Studies in Literature and Journalism, 2014
This article reveals the meaning of the category of time, which is cultural history and philosophical category in poetry of O. Mandelshtam. Ancient cultures exist in culture and the arts always.
A V Khlystova
doaj  

Semiclassical time--dependent propagation in three dimensions: How accurate is it for a Coulomb potential?

open access: yes, 1998
A unified semiclassical time propagator is used to calculate the semiclassical time-correlation function in three cartesian dimensions for a particle moving in an attractive Coulomb potential.
B. W. Spath   +15 more
core   +1 more source

Application of digital technique to the spectral analysis of Mandelshtam-Brjllouin scattered light

open access: yesArchives of Acoustics, 2015
The experimentally recorded Mandelshtam-Brillouin type light scattering function is in general a convolution of the real scattering function and the overall instrumental function, accounting for all the deformations introduced by the measuring ...
Tomasz HORNOWSKI, Mikołaj ŁABOWSKI
doaj  

Elastic Lennard-Jones Polymers Meet Clusters -- Differences and Similarities

open access: yes, 2009
We investigate solid-solid and solid-liquid transitions of elastic flexible off-lattice polymers with Lennard-Jones monomer-monomer interaction and anharmonic springs by means of sophisticated variants of multicanonical Monte Carlo methods.
Bird R. B.   +3 more
core   +1 more source

Comparison of Mandelshtam's Conditions with Convergence Conditions for Iterative Procedures in the Analysis of Complex Dynamic Systems by Means of Partial Models

open access: yesEngineering Transactions, 1992
The convergence conditions for iterative procedures in the analysis of dynamic systems with the use of partial models are compared with Mandelshtam's conditions (uncoupling of vibrations of partial models). Both basic iteration procedures are discussed.
T.L. Stańczyk
doaj  

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