Delocalization and Quantum Entanglement in Physical Systems.

Delocalization and Quantum Entanglement in Physical Systems.
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物理系统中的离域和量子纠缠。

DOI:
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发表时间:
2019
影响因子:
5.7
通讯作者:
B. Bagchi
B. Bagchi
中科院分区:
化学2区
文献类型:
--
作者:
R. Dutta;B. Bagchi

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在扩展的相互作用系统中,能级是非简并的,并且耦合到耗散环境中的量子相干和纠缠在自然界中是常见的,如在光合反应系统和共轭聚合物中。利用温度依赖的量子随机Liouville方程研究了三聚体复合物(Fenna-Matthews-Olson复合物的前三个亚基)中量子相干性的温度依赖性。在非马尔可夫极限下,温度的降低会导致长时间的量子相干,这反过来又会导致离域,其长度会增加。纠缠和相干长度决定了动态局域化的性质。
Quantum coherence and entanglement in an extended interacting system where energy levels are nondegenerate and coupled to a dissipative environment is a common occurrence in nature, like in photosynthetic reaction systems and conjugated polymers. The temperature dependence of quantum coherence in a trimer complex (first three subunits of the Fenna-Matthews-Olson complex) is studied using a temperature-dependent quantum stochastic Liouville equation. In the non-Markovian limit, the lowering of temperature induces long-lasting quantum coherence that, in turn, leads to delocalization, whose length grows. The entanglement and coherence length determine the nature of the dynamic localization.
DOI: 10.1088/1367-2630/12/8/085006
发表时间: 2010-08-11
影响因子: 3.3
作者:
Fassioli, Francesca;Olaya-Castro, Alexandra
通讯作者: Olaya-Castro, Alexandra