论文标题
环境改善的相干收获
Environmentally improved coherent light harvesting
论文作者
论文摘要
尽管有理论证据表明连贯性可以显着提高光收获的性能，但尚未直接观察到相干增强的光收获。主要的实验障碍是在存在混杂变量的情况下隔离连贯性的效果的困难。最近通过操纵光的极化程度来对外部控制连贯性的最新建议表明，相干效率的提高是可能的，但仅限于轻度收获的系统，与其环境薄弱。在这里，我们表明，系统浴耦合强度的增加可以扩大相干效率的提高，而不是抑制它们。这一结果极大地扩大了可用于最终证明相干增强的光收集或将连贯效果的系统范围扩展到人造光收获设备中的范围。
Coherence-enhanced light harvesting has not been directly observed experimentally, despite theoretical evidence that coherence can significantly enhance light-harvesting performance. The main experimental obstacle has been the difficulty in isolating the effect of coherence in the presence of confounding variables. Recent proposals for externally controlling coherence by manipulating the light's degree of polarization showed that coherent efficiency enhancements would be possible, but were restricted to light-harvesting systems weakly coupled to their environment. Here, we show that increases in system-bath coupling strength can amplify coherent efficiency enhancements, rather than suppress them. This result dramatically broadens the range of systems that could be used to conclusively demonstrate coherence-enhanced light harvesting or to engineer coherent effects into artificial light-harvesting devices.
