Published April 1, 2008
| Version v1
Journal article
Boson decay and the dynamical structure factor for the XXZ chain at finite magnetic field
Creators
- 1. Max-Planck-Institute for Solid State Research, Heisenbergstr. 1, 70569 Stuttgart (Germany)
- 2. Department of Physics and Astronomy, University of BC, Vancouver, BC, V6T 1Z1 (Canada)
- 3. Institute for Theoretical Physics, University of Amsterdam, 1018 XE Amsterdam (Netherlands)
- 4. Laboratoire de Physique, Ecole Normale Superieure de Lyon, 69364 Lyon Cedex 07 (France)
- 5. Department of Physics and Astronomy, University of California, Irvine, CA 92697 (United States)
Description
We study the longitudinal dynamical structure factor Szz(q,ω) for the anisotropic spin-1/2 (XXZ) chain at finite magnetic field using Bosonization. The leading irrelevant operators in the effective Bosonic model stemming from band curvature describe Boson decay processes and lead to a high-frequency tail and a finite width γq of the on-shell peak for Szz(q,ω). We use the Bethe Ansatz to show that γq∼q2 for q<<1 and to calculate the amplitudes of the leading irrelevant operators in the effective field theory
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physb.2007.10.304Additional details
Identifiers
- DOI
- 10.1016/j.physb.2007.10.304;
- arXiv
- arXiv:0705.3312v1;
- PII
- S0921-4526(07)01208-2;
Publishing Information
- Journal Title
- Physica. B, Condensed Matter
- Journal Volume
- 403
- Journal Issue
- 5-9
- Journal Page Range
- p. 1520-1522
- ISSN
- 0921-4526
- CODEN
- PHYBE3
Conference
- Title
- International conference on strongly correlated electron systems
- Acronym
- SCES'07
- Dates
- 13-18 May 2007
- Place
- Houston, TX (United States)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39062425
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- AMPLITUDES; ANISOTROPY; BOSON EXPANSION; BOSONS; CHAINS; DECAY; FIELD THEORIES; MAGNETIC FIELDS; PEAKS; SPIN; STRUCTURE FACTORS
- Descriptors DEC
- ANGULAR MOMENTUM; DIMENSIONLESS NUMBERS; PARTICLE PROPERTIES
Optional Information
- Copyright
- Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.