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Wang, H; Zhao, XG; Wang, H , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
Transient dynamics of Ohmic dissipative two-level systems driven by dc-ac fields
Source PublicationPHYSICS LETTERS A
Keyword2-state System Quantum Coherence Bistable System 2-level System Low-frequency Localization Electron Laser Generation Phonons
AbstractTransient dynamics of a biased two-level system with Ohmic dissipation driven by a high-frequency laser field is studied within the noninteracting-blip approximation. It is found that in the low temperature limit, if the friction parameter ct is between 1/2 and 1, the rate constant for the tunneling of a system particle will increase with the intensity and frequency of the field, and the lower frequencies will be in favor of localization of the particle in the metastable state, For 0 < alpha < 1/2, quantum coherence is observed, and the transition temperature from the coherent to incoherent motion is found to depend on the field intensity. When the laser field intensity parameter approaches the zeros of the Nth Bessel function, the coherence disappears. This transition from coherent to incoherent motion oscillating with the intensity of the field gives rise to a cascade of transitions at different temperatures.
1996
ISSN0375-9601
Volume217Issue:41004Pages:232-240
Subject AreaPhysics
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12612
Collection理论物理所科研产出_SCI期刊论文
Corresponding AuthorWang, H , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
Recommended Citation
GB/T 7714
Wang, H,Zhao, XG,Wang, H , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.. Transient dynamics of Ohmic dissipative two-level systems driven by dc-ac fields[J]. PHYSICS LETTERS A,1996,217(41004):232-240.
APA Wang, H,Zhao, XG,&Wang, H , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA..(1996).Transient dynamics of Ohmic dissipative two-level systems driven by dc-ac fields.PHYSICS LETTERS A,217(41004),232-240.
MLA Wang, H,et al."Transient dynamics of Ohmic dissipative two-level systems driven by dc-ac fields".PHYSICS LETTERS A 217.41004(1996):232-240.
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