Experimental quantum simulation of Avian Compass in a nuclear magnetic resonance system
Experimental quantum simulation of Avian Compass in a nuclear magnetic resonance system
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DOI：
10.1007/s11433-016-0376-6
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发表时间：
2016-10
期刊：
影响因子：
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通讯作者：
Jasong Pearson;Guanru Feng;Chao Zheng;G. Long
中科院分区：
文献类型：
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作者：
Jasong Pearson;Guanru Feng;Chao Zheng;G. Long
鸟类的磁感受能力是鸟类感知地球磁场方向的能力。它在四十多年前被发现，多年来吸引了大量的研究。描述鸟类这种能力的一个有希望的模型是广泛使用的参考-探针模型，其中鸟类眼睛内的自由基对结合形成单重态和三重态量子态。产率取决于地球磁场与分子轴之间的角度，因此单重态或三重态产率的相对值使鸟类能够感知方向。在这里，我们报告的实验演示鸟类磁感受的核磁共振量子信息处理器。实验结果表明，单重态的产额在垂直于地球磁场方向时达到最大值，实验结果与理论符合得很好。
Avian magnetoreception is the capacity for avians to sense the direction of the Earth’s magnetic field. Discovered more than forty years ago, it has attracted intensive studies over the years. One promising model for describing this capacity in avians is the widely used reference-and-probe model where radical pairs within the eyes of bird combines to form singlet and triplet quantum states. The yield depends on the angle between the Earth’s magnetic field and the molecules’ axis, hence the relative value of yield of the singlet state or triplet state enables avians to sense the direction. Here we report the experimental demonstration of avian magnetoreception in a nuclear magnetic resonance quantum information processor. It is shown clearly from the experiment that the yield of the singlet state attains maximum when it is normal to the Earth’s magnetic field, and the experimental results agree with theory very well.