Department of Chemistry and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, USA.
J Chem Phys. 2012 Aug 21;137(7):074112. doi: 10.1063/1.4742333.
We investigate the evolution of entanglement in the Fenna-Matthew-Olson (FMO) complex based on simulations using the scaled hierarchical equations of motion approach. We examine the role of entanglement in the FMO complex by direct computation of the convex roof. We use monogamy to give a lower bound for entanglement and obtain an upper bound from the evaluation of the convex roof. Examination of bipartite measures for all possible bipartitions provides a complete picture of the multipartite entanglement. Our results support the hypothesis that entanglement is maximum primary along the two distinct electronic energy transfer pathways. In addition, we note that the structure of multipartite entanglement is quite simple, suggesting that there are constraints on the mixed state entanglement beyond those due to monogamy.
我们基于使用标度的分层运动方程方法的模拟来研究芬纳-马修-奥尔森（FMO）复合物中的纠缠演化。我们通过直接计算凸包来研究纠缠在 FMO 复合物中的作用。我们使用非加性来对纠缠进行下界估计，并从凸包的评估中得到上界。对所有可能的二分法的双边度量的检验提供了多体纠缠的完整图景。我们的结果支持了这样的假设，即沿着两个不同的电子能量转移途径，纠缠是最大的主要部分。此外，我们注意到多体纠缠的结构非常简单，这表明混合态纠缠的结构受到限制，超出了非加性的限制。
