Transient dynamics of Ohmic dissipative two-level systems driven by dc-ac fields
文献类型：期刊论文
| 作者 | Wang, H , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.; Wang, H; Zhao, XG |
| 刊名 | PHYSICS LETTERS A
 |
| 出版日期 | 1996 |
| 卷号 | 217期号:41004页码:232-240 |
| 关键词 | 2-state System Quantum Coherence Bistable System 2-level System Low-frequency Localization Electron Laser Generation Phonons |
| ISSN号 | 0375-9601 |
| 英文摘要 | Transient 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. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12612]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Wang, H , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA. |
| 推荐引用方式 GB/T 7714 | Wang, H , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.,Wang, H,Zhao, XG. 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 , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.,Wang, H,&Zhao, XG.(1996).Transient dynamics of Ohmic dissipative two-level systems driven by dc-ac fields.PHYSICS LETTERS A,217(41004),232-240. |
| MLA | Wang, H , CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.,et al."Transient dynamics of Ohmic dissipative two-level systems driven by dc-ac fields".PHYSICS LETTERS A 217.41004(1996):232-240. |
入库方式： OAI收割
来源：理论物理研究所
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