Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Ricardo Schor"'
Publikováno v:
Communications in Mathematical Physics. 245:383-405
We consider a functional integral formulation for one-flavor lattice Quantum Chromodynamics in d=2,3 space dimensions and imaginary time, and work in the regime of the small hopping parameter , and zero plaquette coupling. Following the standard cons
Autor:
Ricardo Schor, Michael O'Carroll
Publikováno v:
Journal of Statistical Physics. 109:279-288
We obtain new properties of d-dimensional lattice ferromagnetic classical N-component vector spin systems in the high temperature region. Each model is characterized by a single site a priori single spin probability distribution (sspd) which we take
Publikováno v:
Communications in Mathematical Physics. 220:377-402
We consider the relaxation to equilibrium of solutions \(\), t>0, \(\), of stochastic dynamical Langevin equations with white noise and weakly coupled Ginzburg–Landau interactions. Using a Feynman–Kac formula, which relates stochastic expectation
Autor:
Ricardo Schor, Michael O'Carroll
Publikováno v:
Journal of Statistical Physics. 99:1207-1223
We obtain new properties of general d-dimensional lattice ferromagnetic spin systems with nearest neighbor interactions in the high-temperature region (β≪1). Each model is characterized by a single-site a priori spin distribution, taken to be even
Autor:
Michael O'Carroll, Ricardo Schor
Publikováno v:
Journal of Statistical Physics. 99:1265-1279
We consider lattice classical ferromagnetic spin systems at high temperature (β≪1) with nearest neighbor interactions and even single-spin distributions (ssd). Associated with each system is an imaginary time lattice quantum field theory. It is kn
Publikováno v:
Physical Review E. 59:2689-2694
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
Publikováno v:
Journal of Statistical Physics. 92:47-55
We consider the correlation functions for a hierarchical N-component classical vector model in three dimensions. For N = ∞, we find explicitly the eigenvalues and global eigenfunctions of the linearized renormalization group transformation. In a ve
Publikováno v:
Journal of Mathematical Physics. 32:3199-3208
The basis is laid for a block renormalization analysis of spinor electrodynamics in d=2,3 dimensions in a lattice approximation. The Fermion part of the renormalization group transformation gives rise to a sequence of localized Fermion action, fluctu
Autor:
Ricardo Schor, Michael O'Carroll
Publikováno v:
Journal of Statistical Physics. 64:163-191
Low-temperature properties of the one-and two-point correlation functions are obtained for the pure state classical vector model in a hierarchical formulation. We consider theZ d lattice model (d⩾3) where the single-site spin variableφeR v has a d
Autor:
Ricardo Schor, Michael O'Carroll
Publikováno v:
Comm. Math. Phys. 138, no. 3 (1991), 487-505
We obtain low temperature properties of the classical vector model in a hierarchical formulation in three or more dimensions. We consider the lattice model in a zero or non-zero magnetic field, where the single site spin variable ϕ∈R v has a densi