Soliton energetics in Peierls-Hubbard models

D. K. Campbell; T. A. DeGrand; S. Mazumdar

doi:10.1103/PhysRevLett.52.1717

Soliton energetics in Peierls-Hubbard models

D. K. Campbell
, T. A. DeGrand
, S. Mazumdar

Research output: Contribution to journal › Article › peer-review

99 Scopus citations

Abstract

We study the effect of electron-electron correlations on the energetics of solitons in electron-phonon models of quasi one-dimensional materials. In these combined Peierls-Hubbard models, by use of quantum Monte Carlo techniques, we (1) establish that the ground state of an odd chain, singly charged or neutral, is a soliton; (2) calculate neutral-soliton creation energies; and (3) prove that "soliton doping" persists in the presence of correlations. We discuss the relevance of our results for trans-polyacetylene.

Original language	English (US)
Pages (from-to)	1717-1720
Number of pages	4
Journal	Physical review letters
Volume	52
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.52.1717
State	Published - 1984
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.52.1717

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title = "Soliton energetics in Peierls-Hubbard models",

abstract = "We study the effect of electron-electron correlations on the energetics of solitons in electron-phonon models of quasi one-dimensional materials. In these combined Peierls-Hubbard models, by use of quantum Monte Carlo techniques, we (1) establish that the ground state of an odd chain, singly charged or neutral, is a soliton; (2) calculate neutral-soliton creation energies; and (3) prove that {"}soliton doping{"} persists in the presence of correlations. We discuss the relevance of our results for trans-polyacetylene.",

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year = "1984",

doi = "10.1103/PhysRevLett.52.1717",

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AU - Campbell, D. K.

AU - DeGrand, T. A.

AU - Mazumdar, S.

PY - 1984

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N2 - We study the effect of electron-electron correlations on the energetics of solitons in electron-phonon models of quasi one-dimensional materials. In these combined Peierls-Hubbard models, by use of quantum Monte Carlo techniques, we (1) establish that the ground state of an odd chain, singly charged or neutral, is a soliton; (2) calculate neutral-soliton creation energies; and (3) prove that "soliton doping" persists in the presence of correlations. We discuss the relevance of our results for trans-polyacetylene.

AB - We study the effect of electron-electron correlations on the energetics of solitons in electron-phonon models of quasi one-dimensional materials. In these combined Peierls-Hubbard models, by use of quantum Monte Carlo techniques, we (1) establish that the ground state of an odd chain, singly charged or neutral, is a soliton; (2) calculate neutral-soliton creation energies; and (3) prove that "soliton doping" persists in the presence of correlations. We discuss the relevance of our results for trans-polyacetylene.

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UR - https://www.scopus.com/pages/publications/4243348799#tab=citedBy

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DO - 10.1103/PhysRevLett.52.1717

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SP - 1717

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JO - Physical review letters

JF - Physical review letters

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Soliton energetics in Peierls-Hubbard models

Abstract

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