Locality and universality of quantum memory effects.
Locality and universality of quantum memory effects.
复制标题
量子记忆效应的局部性和普遍性
DOI:
10.1038/srep06327
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发表时间:
2014-09-11
影响因子:
4.6
通讯作者:
Breuer HP
中科院分区:
文献类型:
--
作者:
Liu BH;Wißmann S;Hu XM;Zhang C;Huang YF;Li CF;Guo GC;Karlsson A;Piilo J;Breuer HP
The modeling and analysis of the dynamics of complex systems often requires to employ non-Markovian stochastic processes. While there is a clear and well-established mathematical definition for non-Markovianity in the case of classical systems, the extension to the quantum regime recently caused a vivid debate, leading to many different proposals for the characterization and quantification of memory effects in the dynamics of open quantum systems. Here, we derive a mathematical representation for the non-Markovianity measure based on the exchange of information between the open system and its environment, which reveals the locality and universality of non-Markovianity in the quantum state space and substantially simplifies its numerical and experimental determination. We further illustrate the application of this representation by means of an all-optical experiment which allows the measurement of the degree of memory effects in a photonic quantum process with high accuracy.
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影响因子:
8.6
作者:
Wolf, M. M.;Eisert, J.;Cirac, J. I.
通讯作者:
Cirac, J. I.
影响因子:
2.9
作者:
James, DFV;Kwiat, PG;White, AG
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White, AG
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2.9
作者:
Luo, Shunlong;Fu, Shuangshuang;Song, Hongting
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Song, Hongting
影响因子:
2.9
作者:
Kwiat, PG;Waks, E;Eberhard, PH
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Eberhard, PH
影响因子:
2.5
作者:
Fuchs, CA;van de Graaf, J
通讯作者:
van de Graaf, J