Square-lattice \(s=1/2 XY\) model and the Jordan-Wigner fermions: The ground-state and thermodynamic properties

DOI10.1016/S0378-4371(02)01595-9zbMath1010.82013arXivcond-mat/0207179MaRDI QIDQ1859783

Johannes Richter, Oleg Derzhko, Taras Verkholyak, Reimar Schmidt

Publication date: 19 February 2003

Published in: Physica A (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/cond-mat/0207179

zbMATH Keywords

quantum phase transitionexchange interaction anisotropieszero-temperature magnetization

Mathematics Subject Classification ID

Phase transitions (general) in equilibrium statistical mechanics (82B26) Lattice systems (Ising, dimer, Potts, etc.) and systems on graphs arising in equilibrium statistical mechanics (82B20)

Cites Work

• Finite-size scaling in the spin- model on a square lattice
• A plane of weakly coupled Heisenberg chains: theoretical arguments and numerical calculations
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