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Title:
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Validity of time-dependent trial states for the Holstein Polaron.
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Author:
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Luo, Bin.; Ye, Jun.; Guan, Chengbo.; Zhao, Yang.
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Copyright year:
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2010 |
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Abstract:
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Validity of three time-dependent trial states for the Holstein Hamiltonian, namely, the D2, Merrifield and D Ansatze has been examined in detail with regards to their deviations from the exact solution to the time-dependent Schrodinger equation. Linear absorption spectra are also calculated as an additional indicator of the Ansatz validity. It is found that the D Ansatz is the most accurate trial state of the three, and all Ansatze fail to provide an adequate description of system dynamics in the weak-coupling regime. |
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Subject:
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DRNTU::Science::Physics::Atomic physics::Properties of matter and antimatter. |
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Type:
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Journal Article |
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Series/ Journal Title:
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Physical chemistry chemical physics : PCCP |
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School:
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School of Materials Science and Engineering |
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Version:
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Accepted version |
