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Excitons in the strong coupling limit of the one-dimensional extended Hubbard model

Abstract:

Excitons in the strong coupling limit of the half-filled one-dimensional extended Hubbard model with 1/r interactions are studied. Unlike the situation for nearest neighbor interactions, where there is at most only one (doubly degenerate) bound state, a 1/r interaction results in an infinite number of doubly degenerate bound states. In the continuum limit the exciton states are one-dimensional hydrogenlike states, with binding energies ∼ 1/n2. The particle-hole separation grows rapidly with n...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevB.65.205118

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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Physical and Theoretical Chem
Role:
Author
Journal:
PHYSICAL REVIEW B
Volume:
65
Issue:
20
Pages:
2051181-2051185
Publication date:
2002-05-15
DOI:
EISSN:
1095-3795
ISSN:
1098-0121
URN:
uuid:bc35a2fc-68fb-4337-8b23-ccdc8de785f5
Source identifiers:
38305
Local pid:
pubs:38305
Language:
English

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