Dynamics of a superlattice in a dc-trigonal wave electric field

Jian Ping Gong; Jian Li Shao; Duan Suqing; Xian Geng Zhao

doi:10.1016/j.physleta.2004.12.052

Dynamics of a superlattice in a dc-trigonal wave electric field

Jian Ping Gong, Jian Li Shao^*, Duan Suqing, Xian Geng Zhao

^*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

We investigate the dynamics of a superlattice with a single-band tight-binding model under a dc-trigonal wave electric field. By using Fourier analysis, we obtain analytically the conditions of the dynamics of the system: when the ratio of the Bloch frequency to electric field frequency is not an integer, it is found that the system always remains localized; when the ratio is an integer, it is found that the conditions of the localization depend on the Bloch frequency, the electric field frequency and the amplitude of the trigonal-wave electric field. The quasi-energy spectrums are also discussed, which show that the localization occurs at the collapse points of the quasi-energy band.

Original language	English
Pages (from-to)	486-493
Number of pages	8
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	335
Issue number	5-6
DOIs	https://doi.org/10.1016/j.physleta.2004.12.052
Publication status	Published - 21 Feb 2005
Externally published	Yes

Keywords

Dynamical localization
Quasi-energy
dc-trigonal wave electric field

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10.1016/j.physleta.2004.12.052

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title = "Dynamics of a superlattice in a dc-trigonal wave electric field",

abstract = "We investigate the dynamics of a superlattice with a single-band tight-binding model under a dc-trigonal wave electric field. By using Fourier analysis, we obtain analytically the conditions of the dynamics of the system: when the ratio of the Bloch frequency to electric field frequency is not an integer, it is found that the system always remains localized; when the ratio is an integer, it is found that the conditions of the localization depend on the Bloch frequency, the electric field frequency and the amplitude of the trigonal-wave electric field. The quasi-energy spectrums are also discussed, which show that the localization occurs at the collapse points of the quasi-energy band.",

keywords = "Dynamical localization, Quasi-energy, dc-trigonal wave electric field",

author = "Gong, \{Jian Ping\} and Shao, \{Jian Li\} and Duan Suqing and Zhao, \{Xian Geng\}",

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T1 - Dynamics of a superlattice in a dc-trigonal wave electric field

AU - Gong, Jian Ping

AU - Shao, Jian Li

AU - Suqing, Duan

AU - Zhao, Xian Geng

PY - 2005/2/21

Y1 - 2005/2/21

N2 - We investigate the dynamics of a superlattice with a single-band tight-binding model under a dc-trigonal wave electric field. By using Fourier analysis, we obtain analytically the conditions of the dynamics of the system: when the ratio of the Bloch frequency to electric field frequency is not an integer, it is found that the system always remains localized; when the ratio is an integer, it is found that the conditions of the localization depend on the Bloch frequency, the electric field frequency and the amplitude of the trigonal-wave electric field. The quasi-energy spectrums are also discussed, which show that the localization occurs at the collapse points of the quasi-energy band.

AB - We investigate the dynamics of a superlattice with a single-band tight-binding model under a dc-trigonal wave electric field. By using Fourier analysis, we obtain analytically the conditions of the dynamics of the system: when the ratio of the Bloch frequency to electric field frequency is not an integer, it is found that the system always remains localized; when the ratio is an integer, it is found that the conditions of the localization depend on the Bloch frequency, the electric field frequency and the amplitude of the trigonal-wave electric field. The quasi-energy spectrums are also discussed, which show that the localization occurs at the collapse points of the quasi-energy band.

KW - Dynamical localization

KW - Quasi-energy

KW - dc-trigonal wave electric field

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DO - 10.1016/j.physleta.2004.12.052

M3 - Article

AN - SCOPUS:12844276642

SN - 0375-9601

VL - 335

SP - 486

EP - 493

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

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

IS - 5-6

ER -

Dynamics of a superlattice in a dc-trigonal wave electric field

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Keywords

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