Ground state of a simple spin-boson syst
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C.F. Lo; W.H. Wong
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Article
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1996
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Elsevier Science
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English
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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