Motional effects on the efficiency of excitation transfer

Motional effects on the efficiency of excitation transfer
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运动对兴奋传递效率的影响

DOI:
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发表时间:
2010
期刊:
影响因子:
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通讯作者:
H. Briegel
H. Briegel
中科院分区:
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文献类型:
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作者:
A. Asadian;M. Tiersch;G. Guerreschi;Jianming Cai;S. Popescu;H. Briegel

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能量转移在许多自然和技术过程中起着至关重要的作用。在这项工作中,我们研究了机械运动的影响,通过一个链的相互作用的分子与应用程序的转移过程的生物场景的激发转移。我们的研究表明,对于各种类型的机械振荡,传输效率显着提高可比的静态配置。这种增强是真正的量子特征,需要激发的量子相干演化和分子的机械运动之间的协同相互作用;它在经典的非相干能量转移中没有类似的。这种效应不仅可以自然发生,也可以在人工设计的系统中利用,以优化运输过程。作为一个应用,我们讨论了一个简单的,因此鲁棒控制技术。
Energy transfer plays a vital role in many natural and technological processes. In this work, we study the effects of mechanical motion on the excitation transfer through a chain of interacting molecules with applications to biological scenarios of transfer processes. Our investigation demonstrates that, for various types of mechanical oscillations, the transfer efficiency is significantly enhanced over that of comparable static configurations. This enhancement is a genuine quantum signature and requires the collaborative interplay between the quantum-coherent evolution of the excitation and the mechanical motion of the molecules; it has no analogue in the classical incoherent energy transfer. This effect may not only occur naturally but also be exploited in artificially designed systems to optimize transport processes. As an application, we discuss a simple and hence robust control technique.
DOI: 10.1103/physreve.65.031919
发表时间: 2002-03-01
期刊: PHYSICAL REVIEW E
影响因子: 2.4
作者:
Damjanovic, A;Kosztin, I;Schulten, K
通讯作者: Schulten, K
DOI: 10.1126/science.290.5489.114
发表时间: 2000-10-06
期刊: SCIENCE
影响因子: 56.9
作者:
Balabin, IA;Onuchic, JN
通讯作者: Onuchic, JN