Results 261 to 270 of about 11,707,174 (304)

NOTES ON THE DISTRIBUTION OF PHASE SHIFTS

Modern Physics Letters B, 2008
We consider three-dimensional inverse scattering with fixed energy for which the spherically symmetrical potential is nonvanishing only in a ball. We give exact upper and lower bounds for the phase shifts. We provide a variational formula for the Weyl–Titchmarsh m-function of the one-dimensional Schrödinger operator defined on the half-line.
openaire   +2 more sources

Distribution of Phases in Two-Phase Solids

Journal of Applied Physics, 1949
The quasi-equilibrium distribution of a disperse phase, B, within a polycrystalline second phase, A, is investigated by methods of statistical thermodynamics. Phase B is assumed to consist of spherical particles of uniform size within the A crystals, and of lenticular particles of uniform size at the boundaries between two A crystals. The concentration
openaire   +1 more source

Phase state and phase probability distribution

Optics Communications, 1992
Abstract The properties of the phase state and phase probability distribution of photons are investigated in terms of the phase operator formalism based on the relative-number state representation. The calculation method of phase dynamics is also presented.
openaire   +1 more source

Phase-Type Distributions

2017
The class of distributions on [0, ∞) having a rational Laplace transform (i.e., a Laplace transform that is the fraction between two polynomials) will, for reasons that will become apparent in the next chapter, be referred to as matrix-exponential distributions.
Mogens Bladt, Bo Friis Nielsen
openaire   +1 more source

A Phase Transition for the Distribution of Matching Blocks

Combinatorics, Probability and Computing, 1996
We show distributional results for the length of the longest matching consecutive subsequence between two independent sequencesA1,A2, …,AmandB1,B2, …,Bnwhose letters are taken from a finite alphabet. We assume thatA1,A2, … are i.i.d. with distribution μ andB1,B2, … are i.i.d. with distribution ν.
openaire   +1 more source

Phase Space Distributions

2014
Abstract This chapter formally presents the representation of the quantum density operator by phase space distribution functions of phase space variables, leading to expressions for quantum correlation functions in terms of phase space integrals in which phase space variables for each mode—c-numbers for bosons, Grassmann numbers for ...
Bryan J. Dalton, John Jeffers, Stephen M. Barnett   +2 more
openaire   +2 more sources

Phase-Type Distributions

2014
Continuous-time Markov chainsContinuous-time Markov chain (CTMCs)CTMC seealso Continuous-time Markov chain Markov chain seealso Continuous-time Markov chain are a class of stochastic processes with a discrete state space in which the time between transitions follows an exponential distribution.
Peter Buchholz, Jan Kriege, Iryna Felko
openaire   +1 more source

On inferring the number of phases in a coxian phase-type distribution

Communications in Statistics. Stochastic Models, 1998
Summary: Coxian phase-type distributions of increasing order were fitted to simulated exponential data by maximum likelihood, and the distributions of the resulting likelihood ratio statistic considered. These distributions resembled mixed chi-squared distributions with mixing probabilities related to parameter redundancies apparent from the estimates ...
openaire   +2 more sources

Quasiprobability Distribution and Phase Distribution in Interacting Fock Space

International Journal of Theoretical Physics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Phase Transitions in 2D Materials

Nature Reviews Materials, 2021
Wenbin Li, Ju Li, Xiaofeng Qian
exaly