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Questioning the existence of a unique ground-state structure for Si clusters

โœ Scribed by Hellmann, Waldemar; Hennig, R. G.; Goedecker, Stefan; Umrigar, C. J.; Delley, Bernard; Lenosky, T.


Book ID
118162420
Publisher
The American Physical Society
Year
2007
Tongue
English
Weight
311 KB
Volume
75
Category
Article
ISSN
1098-0121

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A generalization of the standard spin-boson model is considered. The Hamiltonian H(:) of the model with a coupling parameter : # R acts in the tensor product H F b of a Hilbert space H and the boson (symmetric) Fock space F b over L 2 (R & ). The existence and uniqueness of ground states of H(:) are