The one-particle energy spectrum of weakly coupled quantum rotators

DOI10.1063/1.533120zbMath0977.82006OpenAlexW1989657610MaRDI QIDQ2737802

N. Angelescu, Valentin A. Zagrebnov, Robert Adol'fovich Minlos

Publication date: 30 August 2001

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

Full work available at URL: https://doi.org/10.1063/1.533120

zbMATH Keywords

Hamiltonianself-adjoint operatorabsolutely continuous spectrumcluster expansion methodFeynman-Kac representationinfinite crystalweakly interacting quantum rigid rotators

Mathematics Subject Classification ID

Related Items (2)

Perturbations of ground states in weakly interacting quantum spin systems ⋮ Scattering of quasi-particle excitations in weakly coupled stochastic lattice spin systems

Cites Work

• One-particle subspaces in the stochastic \(XY\) model
• A quantum crystal with multidimensional anharmonic oscillators
• On the spectrum of the generator of an infinite system of interacting diffusions

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