Decoherence and relaxation of qubits coupled to low- and medium-frequency Ohmic baths directly and via a harmonic oscillator
文献类型：期刊论文
| 作者 | Liang, Xian-Ting1,2 |
| 刊名 | CHEMICAL PHYSICS
 |
| 出版日期 | 2008-09-03 |
| 卷号 | 352页码:106-110 |
| 关键词 | decoherence relaxation path integral spin-boson |
| ISSN号 | 0301-0104 |
| DOI | 10.1016/j.chemphys.2008.05.015 |
| 英文摘要 | Using the numerical path integral method we investigate the decoherence and relaxation of qubits in spin-boson (SB) and spin-intermediate harmonic oscillator (IHO)-bath (SIB) models. The cases that the environment baths with low and medium frequencies are investigated. It is shown that the qubits in SB and SIB models have the same decoherence and relaxation as the baths with low frequencies. However, the qubits in the two models have different decoherence and relaxation as the baths with medium frequencies. The decoherence and relaxation of the qubit in SIB model can be modulated through changing the coupling Coefficients Of the qubit-IHO and IHO-bath and the oscillation frequency of the IHO. (C) 2008 Published by Elsevier B.V. |
| WOS关键词 | DISSIPATIVE 2-STATE SYSTEM ; REDUCED DENSITY-MATRICES ; QUANTUM TIME EVOLUTION ; STRUCTURED ENVIRONMENT ; TENSOR PROPAGATOR ; ELECTRON-TRANSFER ; ENERGY-TRANSFER ; LONG-TIME ; DYNAMICS ; COHERENCE |
| 资助项目 | National Natural Science Foundation of China[10675066] ; K.C. Wong Magna Foundation in Ningbo University |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000259463200013 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of China ; K.C. Wong Magna Foundation in Ningbo University |
| 源URL | [http://119.78.100.186/handle/113462/28694]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Liang, Xian-Ting |
| 作者单位 | 1.Ningbo Univ, Inst Modern Phys, Ningbo 315211, Zhejiang, Peoples R China 2.Ningbo Univ, Dept Phys, Ningbo 315211, Zhejiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, Xian-Ting. Decoherence and relaxation of qubits coupled to low- and medium-frequency Ohmic baths directly and via a harmonic oscillator[J]. CHEMICAL PHYSICS,2008,352:106-110. |
| APA | Liang, Xian-Ting.(2008).Decoherence and relaxation of qubits coupled to low- and medium-frequency Ohmic baths directly and via a harmonic oscillator.CHEMICAL PHYSICS,352,106-110. |
| MLA | Liang, Xian-Ting."Decoherence and relaxation of qubits coupled to low- and medium-frequency Ohmic baths directly and via a harmonic oscillator".CHEMICAL PHYSICS 352(2008):106-110. |
入库方式： OAI收割
来源：近代物理研究所
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