Random Spin-1 Quantum Chains

Preprint

2 February 1996

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9602013

Abstract

We study disordered spin-1 quantum chains with random exchange and biquadratic interactions using a real space renormalization group approach. We find that the dimerized phase of the pure biquadratic model is unstable and gives rise to a random singlet phase in the presence of weak disorder. In the Haldane region of the phase diagram we obtain a quite different behavior.

Keywords

RENORMALIZATION GROUP
SPACE RENORMALIZATION
INTERACTIONS USING
STUDY DISORDERED
PURE BIQUADRATIC
DISORDERED SPIN
QUANTUM CHAINS
RANDOM SPIN
DIMERIZED

All Related Versions

Version 1, 1996-02-02, ArXiv
Published version: Solid State Communications, 98 (5), 411.

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