Dynamics of tilted superlattices with time-dependent impurity

W. X. Yan; B. H. Xie; Shuo Jin

doi:10.1016/j.physleta.2007.04.081

Dynamics of tilted superlattices with time-dependent impurity

W. X. Yan^*
, B. H. Xie
, Shuo Jin

^*Corresponding author for this work

School of Physics

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

Abstract

The influence of time-dependent impurity on the electronic and transport properties of the tilted superlattices modeled by the tight-binding Hamiltonian is investigated. The quasienergies of the system are calculated in two methods: exact diagonalization and Floquet replica technique, the subtle effects of the impurity on the dynamics of the system are discussed in detail. Through a perturbative analysis in terms of the inverse of the time-dependent impurity frequency, we obtain the time-independent effective Hamiltonian, whose reliability and physical implication are discussed.

Original language	English
Pages (from-to)	243-248
Number of pages	6
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	369
Issue number	3
DOIs	https://doi.org/10.1016/j.physleta.2007.04.081
State	Published - 17 Sep 2007

Keywords

Density of state
Floquet replica
Quasienergy
Wannier-Stark ladders

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10.1016/j.physleta.2007.04.081

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title = "Dynamics of tilted superlattices with time-dependent impurity",

abstract = "The influence of time-dependent impurity on the electronic and transport properties of the tilted superlattices modeled by the tight-binding Hamiltonian is investigated. The quasienergies of the system are calculated in two methods: exact diagonalization and Floquet replica technique, the subtle effects of the impurity on the dynamics of the system are discussed in detail. Through a perturbative analysis in terms of the inverse of the time-dependent impurity frequency, we obtain the time-independent effective Hamiltonian, whose reliability and physical implication are discussed.",

keywords = "Density of state, Floquet replica, Quasienergy, Wannier-Stark ladders",

author = "Yan, \{W. X.\} and Xie, \{B. H.\} and Shuo Jin",

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doi = "10.1016/j.physleta.2007.04.081",

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AU - Xie, B. H.

AU - Jin, Shuo

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N2 - The influence of time-dependent impurity on the electronic and transport properties of the tilted superlattices modeled by the tight-binding Hamiltonian is investigated. The quasienergies of the system are calculated in two methods: exact diagonalization and Floquet replica technique, the subtle effects of the impurity on the dynamics of the system are discussed in detail. Through a perturbative analysis in terms of the inverse of the time-dependent impurity frequency, we obtain the time-independent effective Hamiltonian, whose reliability and physical implication are discussed.

AB - The influence of time-dependent impurity on the electronic and transport properties of the tilted superlattices modeled by the tight-binding Hamiltonian is investigated. The quasienergies of the system are calculated in two methods: exact diagonalization and Floquet replica technique, the subtle effects of the impurity on the dynamics of the system are discussed in detail. Through a perturbative analysis in terms of the inverse of the time-dependent impurity frequency, we obtain the time-independent effective Hamiltonian, whose reliability and physical implication are discussed.

KW - Density of state

KW - Floquet replica

KW - Quasienergy

KW - Wannier-Stark ladders

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U2 - 10.1016/j.physleta.2007.04.081

DO - 10.1016/j.physleta.2007.04.081

M3 - 文章

AN - SCOPUS:34548498142

SN - 0375-9601

VL - 369

SP - 243

EP - 248

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 3

ER -

Dynamics of tilted superlattices with time-dependent impurity

Abstract

Keywords

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