Quantum teleportation of radical pair in photosynthetic biomembrane

为了研究生物膜之间的量子隐形传输，我们对光系统II中的自由基对进行了测试。为了实现这一目的，在8.5-10.5 GHz范围内，多个微波频率被用于脉冲电子顺磁共振(EPR)的自旋激发。将五种不同的微波频率馈入EPR微波桥中的脉冲形成单元，用于多个自旋包的自旋激发。通过对植物光系统II中酪氨酸自由基与锰团簇相互作用的PELDOR测量来评价自旋激发的效率。5个不同微波频率辐照的PELDOR光谱的信噪比(S/N)是单一微波频率下的S/N的2.0倍。混合微波频率的使用有效地辐照了宽EPR谱中不同的自旋包，从而提高了宽EPR谱中PELDOR信号的S/N比。在供体Mn^2+存在的情况下，在光系统II中检测到了瞬时EPR信号

In order to investigate quantum teleportation between bio-membrane, radical pairs in photosystem II have been tested. To success the purpose, multiple microwave frequencies in the region of 8.5 -10.5 GHz were applied to spin excitation for pulsed electron paramagnetic resonance (EPR). Five different microwave frequencies were fed to the pulse-forming unit in the EPR microwave bridge and used for spin excitation for multiple spin packets. The efficiency of the spin excitation was evaluated by PELDOR measurements of the interaction between tyrosine radical and the manganese cluster in the plant photosystem II. The signal-to-noise (S/N) ratio of the PELDOR spectrum irradiated by five different microwave frequencies was 2.0 times larger than the S/N from a single microwave frequency. The use of mixed microwave frequencies irradiates the different spin packets in the wide EPR spectrum efficiently, thereby improving the S/N ratio of the PELDOR signal in the broad EPR spectrum. Transient EPR signals was detected in photosystem II in the present of donor Mn^2+