Pedram Ali, Çakmak Barış, Müstecaplıoğlu Özgür E
Department of Physics, Koç University, Sarıyer, Istanbul 34450, Türkiye.
College of Engineering and Natural Sciences, Bahçeşehir University, Beşiktaş, Istanbul 34353, Türkiye.
Entropy (Basel). 2022 Aug 20;24(8):1162. doi: 10.3390/e24081162.
The high energy transfer efficiency of photosynthetic complexes has been a topic of research across many disciplines. Several attempts have been made in order to explain this energy transfer enhancement in terms of quantum mechanical resources such as energetic and vibration coherence and constructive effects of environmental noise. The developments in this line of research have inspired various biomimetic works aiming to use the underlying mechanisms in biological light harvesting complexes for the improvement of synthetic systems. In this article, we explore the effect of an auxiliary hierarchically structured environment interacting with a system on the steady-state heat transport across the system. The cold and hot baths are modeled by a series of identically prepared qubits in their respective thermal states, and we use a collision model to simulate the open quantum dynamics of the system. We investigate the effects of system-environment, inter-environment couplings and coherence of the structured environment on the steady state heat flux and find that such a coupling enhances the energy transfer. Our calculations reveal that there exists a non-monotonic and non-trivial relationship between the steady-state heat flux and the mentioned parameters.
光合复合物的高能量转移效率一直是许多学科的研究课题。人们已经进行了几次尝试，以便从量子力学资源（如能量和振动相干以及环境噪声的建设性效应）的角度来解释这种能量转移增强现象。这一研究方向的进展激发了各种仿生研究工作，旨在利用生物光捕获复合物中的潜在机制来改进合成系统。在本文中，我们探讨了与系统相互作用的辅助层次结构环境对系统稳态热传输的影响。冷浴和热浴由处于各自热态的一系列相同制备的量子比特建模，并且我们使用碰撞模型来模拟系统的开放量子动力学。我们研究了系统 - 环境、环境间耦合以及结构化环境的相干性对稳态热流的影响，发现这种耦合增强了能量转移。我们的计算表明，稳态热流与上述参数之间存在非单调且非平凡的关系。
