Spectral properties of weakly coupled Landau-Ginzburg stochastic models

Autor:	João C. A. Barata, Ricardo Schor, Paulo A. Faria da Veiga, Emmanuel Pereira
Rok vydání:	1999
Předmět:	Geometric Brownian motion Stochastic dynamics Stochastic modelling Quantum mechanics Quartic function Lattice (order) Local time Spectral properties Bound state Statistical physics Mathematics
Zdroj:	Physical Review E. 59:2689-2694
ISSN:	1095-3787 1063-651X
DOI:	10.1103/physreve.59.2689
Popis:	We study the existence of bound states in the generator of the stochastic dynamics associated to weakly coupled lattice Landau-Ginzburg models. By analyzing the Bethe-Salpeter kernel in the ladder approximation, these states are shown to exist if the polynomial interaction has a negative quartic term and the lattice dimension is smaller than 3. Asymptotic values for the masses are also obtained, giving precise relaxation rates for even correlations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::295b8d8fe93de398c947c5f8d90161d9 https://doi.org/10.1103/physreve.59.2689 Zobrazit plný text záznamu