Effect of Landau-Zener tunneling by the varying sweeping rate of external field

We study the effect of Landau-Zener （LZ） tunneling caused by the varying sweeping rate of the external field, and solve the problem about the LZ tunneling rate among many levels. The LZ tunneling rate is essentially changed by the unsteady variation of the time-dependent sweeping field and is differ...

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Bibliographic Details
Published inChinese physics B Vol. 19; no. 3; pp. 258 - 262
Main Author 王锦宝 童国平 李盛
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.03.2010
Subjects
Landau
Mathematical analysis
Sweeping
Transit
Tunneling
Unsteady
不稳定
多层面
扫描速率
掘进率
Online AccessGet full text
ISSN1674-1056
2058-3834
DOI10.1088/1674-1056/19/3/033201

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Summary:We study the effect of Landau-Zener （LZ） tunneling caused by the varying sweeping rate of the external field, and solve the problem about the LZ tunneling rate among many levels. The LZ tunneling rate is essentially changed by the unsteady variation of the time-dependent sweeping field and is different from the steadily varying sweeping field, which makes the particles in lower states transit periodically to upper states within a finite time.
Bibliography:O4-19
U455.4
11-5639/O4
Landau Zener tunneling, varying sweeping rate, transition probability, n-level state
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ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/19/3/033201