Disorder Induced Quantum Phase Transition in Random-Exchange Spin-1/2 Chains

Details Disorder Induced Quantum Phase Transition in Random-Exchange Spin-1/2 Chains Disorder Induced Quantum Phase Transition in Random-Exchange Spin-1/2 Chains

2001-11-02

arxiv.org/abs/cond-mat/0111027v1

Phys. Rev. Lett. 89, 127202 (2002) (revised version)

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages, 4 postscript figures, needs RevTeX 4

Scientific paper

10.1103/PhysRevLett.89.127202

We investigate the effect of quenched bond-disorder on the anisotropic spin-1/2 (XXZ) chain as a model for disorder induced quantum phase transitions. We find non-universal behavior of the average correlation functions for weak disorder, followed by a quantum phase transition into a strongly disordered phase with only short-range xy-correlations. We find no evidence for the universal strong-disorder fixed point predicted by the real-space renormalization group, suggesting a qualitatively different view of the relationship between quantum fluctuations and disorder.

Affiliated with

Also associated with

No associations

Rating

Disorder Induced Quantum Phase Transition in Random-Exchange Spin-1/2 Chains does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Disorder Induced Quantum Phase Transition in Random-Exchange Spin-1/2 Chains, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disorder Induced Quantum Phase Transition in Random-Exchange Spin-1/2 Chains will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-481299