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介观RLC电路的密度矩阵的量子耗散
  • ISSN号：1000-3290
  • 期刊名称：Acta Physica Sinica
  • 时间：2014.6.2
  • 页码：110301-
  • 分类：O413.1[理学—理论物理;理学—物理]
  • 作者机构：[1]中国科学技术大学材料科学与工程系,合肥230026
  • 相关基金：国家自然科学基金（批准号：11175113）; 中央高校基本科研业务费专项资金（批准号：WK2060140013）资助的课题
  • 相关项目：Dirac符号法的进展及其在量子光学中的应用
作者： 范洪义|何锐|
关键词： 介观RLC电路, 耗散通道, 主方程, 纠缠态表象, mesoscopic RLC circuit, dissipative channel, master equation, entangled state representation
中文摘要：

本文首次采用求解密度矩阵的振幅衰减主方程来研究介观RLC电路的量子耗散.我们考虑到电路实际上处在热环境中,就尝试用（经约化了热库自由度以后）密度矩阵的振幅耗散主方程来研究介观RLC电路的量子衰减,即将电路看作是一个哈密顿稳态系统（不显含时）,而该系统对应的密度矩阵是处在振幅耗散通道中（耗散系数由回路的品质因数决定）随着时间演化,我们求出该回路密度矩阵的量子耗散及回路能量的衰减规律.我们采用纠缠态表象和有序算符内的积分（求和）技术探讨此问题,可以给出终态密度矩阵的解析形式,具有简捷的特点.

英文摘要：

For the first time, as far as we know, we use the approach of solving the amplitude-decaying master equation of density matrix to study the quantum dissipation of a mesoscopic RLC circuit, and thus find out the attenuation law of circuit energy. We then use the entangled state representation and the technique of integration within an ordered product of operators to explore this problem.

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Dirac符号法的进展及其在量子光学中的应用
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期刊信息
  • 《物理学报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国物理学会 中国科学院物理研究所
  • 主编：欧阳钟灿
  • 地址：北京603信箱(中国科学院物理研究所)
  • 邮编：100190
  • 邮箱：apsoffice@iphy.ac.cn
  • 电话：010-82649026
  • 国际标准刊号：ISSN：1000-3290
  • 国内统一刊号：ISSN：11-1958/O4
  • 邮发代号:2-425
  • 获奖情况:
  • 1999年首届国家期刊奖,2000年中科院优秀期刊特等奖,2001年科技期刊最高方阵队双高期刊居中国期刊第12位
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  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,美国科学引文索引（扩展库）,英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:49876