Bound states in two-dimensional spin systems near the Ising limit: A quantum finite-lattice study
Dusuel S, Kamfor M, Schmidt KP, Thomale R, Vidal J (2010)
Publication Status: Published
Publication Type: Journal article
Publication year: 2010
Journal
Publisher: AMER PHYSICAL SOC
Book Volume: 81
Journal Issue: 6
DOI: 10.1103/PhysRevB.81.064412
Abstract
We analyze the properties of low-energy bound states in the transverse-field Ising model and in the XXZ model on the square lattice. To this end, we develop an optimized implementation of perturbative continuous unitary transformations. The Ising model is studied in the small-field limit which is found to be a special case of the toric code model in a magnetic field. To analyze the XXZ model, we perform a perturbative expansion about the Ising limit in order to discuss the fate of the elementary magnon excitations when approaching the Heisenberg point.
Authors with CRIS profile
Involved external institutions
Lycée Saint-Louis
France (FR)
Technische Universität Dortmund
Germany (DE)
University of Paris 6 - Pierre et Marie Curie / Université Paris VI Pierre et Marie Curie (UPMC)
France (FR)
France (FR)
Technische Universität Dortmund
Germany (DE)
University of Paris 6 - Pierre et Marie Curie / Université Paris VI Pierre et Marie Curie (UPMC)
France (FR)
How to cite
APA:
Dusuel, S., Kamfor, M., Schmidt, K.P., Thomale, R., & Vidal, J. (2010). Bound states in two-dimensional spin systems near the Ising limit: A quantum finite-lattice study. Physical Review B, 81(6). https://doi.org/10.1103/PhysRevB.81.064412
MLA:
Dusuel, Sebastien, et al. "Bound states in two-dimensional spin systems near the Ising limit: A quantum finite-lattice study." Physical Review B 81.6 (2010).
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