Instanton picture of the spin tunnelling in the Lipkin - Meshkov - Glick model

DOI10.1088/0305-4470/30/16/008zbMath0934.82019arXivcond-mat/0102073OpenAlexW3100432852MaRDI QIDQ4235334

João da Providência, Constança Providência, Victor I. Belinicher

Publication date: 11 April 2000

Published in: Journal of Physics A: Mathematical and General (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/cond-mat/0102073

zbMATH Keywords

functional integraltunnellingLipkin-Meshkov-Glick modelspin coherent states

Mathematics Subject Classification ID

Exactly solvable models; Bethe ansatz (82B23) Quantum equilibrium statistical mechanics (general) (82B10) Coherent states (81R30)

Related Items (7)

The semiclassical coherent state propagator in the Weyl representation ⋮ Spin coherent-state path integrals and the instanton calculus ⋮ On the extra phase correction to the semiclassical spin coherent-state propagator ⋮ Coherent-state path integrals in the continuum: the \(SU(2)\) case ⋮ The semiclassical propagator for spin coherent states ⋮ Microscopic theory of the two-dimensional quantum antiferromagnet in a paramagnetic phase ⋮ Application of the discrete Wentzel–Kramers–Brillouin method to spin tunneling

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