Incipient quantum melting of the one-dimensional Wigner lattice
- Fratini, S. Laboratoire d’Etudes des Propriétés Electroniques des Solides, CNRS, Grenoble, France
- Valenzuela, B. Instituto de Ciencia de Materiales, CSIC, Madrid, Spain
- Baeriswyl, Dionys Theoretical Physics Group, Physics Department, University of Fribourg, Switzerland
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16.01.2004
Published in:
- Synthetic Metals. - 2004, vol. 141, no. 1-2, p. 193-196
English
A one-dimensional tight-binding model of electrons with long-range Coulomb interactions is studied in the limit where double site occupancy is forbidden and the Coulomb coupling strength V is large with respect to the hopping amplitude t. The quantum problem of a kink–antikink pair generated in the Wigner lattice (the classical ground state for t=0) is solved for fillings n=1/s, where s is an integer larger than 1. The pair energy becomes negative for a relatively high value of V, Vc/t≈s³. This signals the initial stage of the quantum melting of the Wigner lattice.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Physique
- Language
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- English
- Classification
- Physics
- License
- License undefined
- Identifiers
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- RERO DOC 4225
- DOI 10.1016/j.synthmet.2003.10.030
- Persistent URL
- https://folia.unifr.ch/unifr/documents/299719
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