Published April 30, 2004
| Version v1
Journal article
Integrability of a disordered Heisenberg spin-1/2 chain
Creators
- 1. Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 (United States)
Description
We investigate how the transition from integrability to nonintegrability occurs by changing the parameters of the Hamiltonian of a Heisenberg spin-1/2 chain with defects. Randomly distributed defects may lead to quantum chaos. A similar behaviour is obtained in the presence of a single defect out of the edges of the chain, suggesting that randomness is not the cause of chaos in these systems, but the mere presence of a defect
Availability note (English)
Available online at http://stacks.iop.org/0305-4470/37/4723/a4_17_004.pdf or at the Web site for the Journal of Physics. A, Mathematical and General (ISSN 1361-6447) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0305-4470/37/4723/a4_17_004.pdf; http://www.iop.org/;
- DOI
- 10.1088/0305-4470/37/17/004;
- PII
- S0305-4470(04)74620-X;
Publishing Information
- Journal Title
- Journal of Physics. A, Mathematical and General
- Journal Volume
- 37
- Journal Issue
- 17
- Journal Page Range
- p. 4723-4729
- ISSN
- 0305-4470
- CODEN
- JPHAC5
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35069133
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- CHAOS THEORY; DEFECTS; HAMILTONIANS; HEISENBERG MODEL; QUANTUM MECHANICS; RANDOMNESS; SPIN
- Descriptors DEC
- ANGULAR MOMENTUM; CRYSTAL MODELS; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; MATHEMATICS; MECHANICS; PARTICLE PROPERTIES; QUANTUM OPERATORS