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Exact boson expansion for spin-12 systems

โœ Scribed by Heinz Barentzen

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
384 KB
Volume
156
Category
Article
ISSN
0375-9601

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The ground state of a two-level system coupled to a dispersionless phonon bath is studied. The exact ground-state solution to the problem is obtained via a combination of unitary transformations and numerical diagonalization. The impossibility of the discontinuous localization-delocalization transit