Application of the discrete Wentzel–Kramers–Brillouin method to spin tunneling

DOI10.1063/1.532563zbMath0935.81023arXivcond-mat/9907197OpenAlexW3099647733MaRDI QIDQ4701476

Anupam Garg

Publication date: 21 November 1999

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

Full work available at URL: https://arxiv.org/abs/cond-mat/9907197

zbMATH Keywords

WKB methodspin Hamiltoniansdegenerate statestunnel splittings

Mathematics Subject Classification ID

Semiclassical techniques, including WKB and Maslov methods applied to problems in quantum theory (81Q20)

Related Items (4)

Spin coherent-state path integrals and the instanton calculus ⋮ Bi-states and 2-level systems in rectangular Penning traps ⋮ Instantons via breaking geometric symmetry in hyperbolic traps ⋮ Non-Lie top tunneling and quantum bilocalization in planar Penning trap

Cites Work

• Universal upper bound for the tunneling rate of a large quantum spin
• Instanton picture of the spin tunnelling in the Lipkin - Meshkov - Glick model

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