Green

Angel T. Apostolov, Iliana Naumova Apostolova

Published Dec 30, 2016• 0 citations

Publisher

Abstract

We have studied the transverse Ising system in terms of pseudo-spin variables S with arbitrary pseudo-spin using Green

DOI: 10.5281/zenodo.21575807

Related papers

The Quantum Transverse Mixed Ising System with Arbitrary Spin Magnitude

Yu‐qiang Ma, Y. G.

physica status solidi (b)Jun 1, 19930 citations

On the theory of the transverse Ising model with arbitrary spin

A. Elkouraychi, M. Saber, J.W. Tucker

Physica A Statistical Mechanics and its ApplicationsFeb 1, 199532 citations

The exact susceptibility of the transverse Ising chain and Ising-type chains with arbitrary spin

Kazuhiko Minami

Journal of Magnetism and Magnetic MaterialsJan 1, 19982 citations

Green function theory of a semi‐infinite ising ferromagnet in a transverse field

B. A. Shiwai, Michael G Cottam

Abstract A Green function equation‐of‐motion method is employed to calculate the dynamic properties of a semi‐infinite spin system (or pseudo‐spin system) described by the Ising model in a transverse field. The excitations of the system are shown to be the bulk and surface spin waves, and the Green functions are employed to evaluate their spectral intensities and integrated power factors at temperatures above the transition temperature Tc. Some numerical examples are also included.

physica status solidi (b)Apr 1, 19869 citations

Method of two-time Green's functions in the Ising model with transverse field

В. Л. Аксенов, Henryk Konwent, Jürgen Schreiber

Theoretical and Mathematical PhysicsMar 1, 19796 citations

Temperature Green's Function for the Tunneling Model: A New Method of Contraction

E. Kawasaki, K. Sawada

The temperature Green’s function for the so-called tunneling model—an Ising spin system in the presence of transverse field—is investigated, with the transverse part taken as the unperturbed state. A new contraction rule corresponding to Wick’s formula is established for spin-spin correlation functions. A few higher order terms are evaluated by the use of diagram analysis. Result of a preliminary calculation indicates that the damping constant for the soft mode is rather large.

Progress of Theoretical PhysicsNov 1, 19785 citations