【摘要】 约瑟夫森效应的理论研究和实际应用都具有非常重要的意义,近来新兴的超导量子计算,为约瑟夫森效应提供新的应用前景。本文通过对高斯噪声下约瑟夫森隧道结的跳变电流的测量和研究,考察了高斯噪声对约瑟夫森隧道结热激活的影响,说明约瑟夫森隧道结在有效温度远大于TC下,仍然可以用布朗运动理论描述。更多还原

【Abstract】 Josephson effect is an important phenomenon for theoretical research and practical application. The development of Superconducting quantum computing provides more conditions for Josephson junctions researches. The switching distribution of a Josephson tunnel junction under Gaussion white noise was investigated. It is found that the thermal activation theory still valid even at effective temperatures much higher than Tc.更多还原