Chen Hong-Bin, Lien Jiun-Yi, Hwang Chi-Chuan, Chen Yueh-Nan
Department of Physics and National Center for Theoretical Sciences, National Cheng Kung University, Tainan 701, Taiwan.
Department of Physics and National Center for Theoretical Sciences, National Cheng Kung University, Tainan 701, Taiwan and Department of Engineering Science and Supercomputing Research Center, National Cheng Kung University, Tainan 701, Taiwan.
Phys Rev E Stat Nonlin Soft Matter Phys. 2014 Apr;89(4):042147. doi: 10.1103/PhysRevE.89.042147. Epub 2014 Apr 29.
Long-lived quantum coherence in photosynthetic pigment-protein complexes has recently been reported at physiological temperature. It has been pointed out that the discrete vibrational modes may be responsible for the long-lived coherence. Here, we propose an analytical non-Markovian model to explain the origin of the long-lived coherence in pigment-protein complexes. We show that the memory effect of the discrete vibrational modes produces a long oscillating tail in the coherence. We further use the recently proposed measure to quantify the non-Markovianity of the system and find out the prolonged coherence is highly correlated to it.
最近有报道称，光合色素 - 蛋白质复合物在生理温度下存在长寿命量子相干。有人指出，离散振动模式可能是长寿命相干的原因。在此，我们提出一个解析非马尔可夫模型来解释色素 - 蛋白质复合物中长寿命相干的起源。我们表明，离散振动模式的记忆效应在相干中产生一个长振荡尾巴。我们进一步使用最近提出的方法来量化系统的非马尔可夫性，并发现延长的相干与之高度相关。
