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Towards a spectroscopic protocol for unambiguous detection of quantum coherence in excitonic energy transport.
Faraday Discussions ( IF 3.3 ) Pub Date : 2019-12-16 , DOI: 10.1039/c9fd00068b Max Marcus 1 , George C Knee , Animesh Datta
Faraday Discussions ( IF 3.3 ) Pub Date : 2019-12-16 , DOI: 10.1039/c9fd00068b Max Marcus 1 , George C Knee , Animesh Datta
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The role of quantum effects in excitonic energy transport (EET) has been scrutinised intensely and with increasingly sophisticated experimental techniques. This increased complexity requires invoking correspondingly elaborate models to fit spectroscopic data before molecular parameters can be extracted. Possible quantum effects in EET can then be studied, but the conclusions are strongly contingent on the efficacy of the fitting and the accuracy of the model. To circumvent this challenge, we propose a witness for quantum coherence in EET that can be extracted directly from two-pulse pump-probe spectroscopy experimental data. We provide simulations to judge the feasibility of our approach. Somewhat counterintuitively, our protocol does not probe quantum coherence directly, but only indirectly through its implicit deletion. It allows for classical models with no quantum coherence to be decisively ruled out.
中文翻译：
致力于在激子能量传输中明确检测量子相干性的光谱协议。
量子效应在激子能量传输（EET）中的作用已被严格审查，并采用了越来越复杂的实验技术。这种增加的复杂性要求在提取分子参数之前调用相应精细的模型以适合光谱数据。然后可以研究EET中可能的量子效应，但是结论在很大程度上取决于拟合的有效性和模型的准确性。为了规避这一挑战，我们提出了EET中量子相干性的见证人，可以直接从两脉冲泵浦探针光谱实验数据中提取该相干性。我们提供模拟来判断我们方法的可行性。有点与直觉相反，我们的协议不是直接探究量子相干性，而只是通过其隐式删除间接探究。
更新日期：2019-12-17
中文翻译：
致力于在激子能量传输中明确检测量子相干性的光谱协议。
量子效应在激子能量传输（EET）中的作用已被严格审查，并采用了越来越复杂的实验技术。这种增加的复杂性要求在提取分子参数之前调用相应精细的模型以适合光谱数据。然后可以研究EET中可能的量子效应，但是结论在很大程度上取决于拟合的有效性和模型的准确性。为了规避这一挑战，我们提出了EET中量子相干性的见证人，可以直接从两脉冲泵浦探针光谱实验数据中提取该相干性。我们提供模拟来判断我们方法的可行性。有点与直觉相反，我们的协议不是直接探究量子相干性，而只是通过其隐式删除间接探究。
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