Spectrum and Correlation Functions of a Quasi-One-Dimensional Quantum Ising Model
Authors:
- 2 May 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 90 (17) , 177206
Abstract
For a model of weakly coupled quantum Ising chains we outline the phase diagram and establish that well below the transition line the system has a remarkably one-dimensional spectrum. We study the dynamical magnetic susceptibility and find a very rich spectrum with several modes corresponding to a fundamental particle and its bound states. The approach is based on the Bethe ansatz and the random phase approximation applied to the interchain exchange.Keywords
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This publication has 17 references indexed in Scilit:
- Coupled spin-charge dynamics inand its effect on the optical absorptionPhysical Review B, 2002
- Three-particle scattering continuum in quasi-one-dimensional integer-spin Heisenberg magnetsPhysical Review B, 2000
- Calculation of Neel temperature forHeisenberg quasi-one-dimensional antiferromagnetsPhysical Review B, 2000
- Charge ordering and opening of spin gap in NaV2O5Solid State Communications, 1999
- Off shell dynamics of the O(3) NLS model beyond Monte Carlo and perturbation theoryNuclear Physics B, 1997
- The exact relations between the coupling constants and the masses of particles for the integrable perturbed conformal field theoriesPhysics Letters B, 1994
- From form factors to correlation functions. The Ising modelPhysics Letters B, 1992
- Quantum fluctuations in quasi-one-dimensional superconductorsPhysical Review B, 1983
- The Jahn-Teller effect and magnetism: transition metal compoundsSoviet Physics Uspekhi, 1982
- Spin-spin correlation functions for the two-dimensional Ising model: Exact theory in the scaling regionPhysical Review B, 1976