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arXiv 2108.07862cond-mat.supr-con
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约瑟夫森结电子模拟中的锁相和噪声驱动动力学

Phase locking and noise driven dynamics in a Josephson junction electronic analog

Aeron McConnell, Sara Idris, Brian Opatosky, François Amet

摘要:

我们提出一个电子电路,其动态特性模拟的一个磁阻和电容分流的约瑟夫森结(RCSJ)。我们展示了它是如何再现的开关特性的分流结和它的依赖的品质因数。热噪声源,然后用于表征的相位动力学的温度依赖性。在存在交流驱动器的情况下,在驱动频率的整数倍和有理数倍处观察到锁相,并且当结的品质因数超过1时,锁相与混沌行为竞争。我们描述了在热噪声存在下的锁相和混沌状态的稳定性。

英文摘要:

We present an electronic circuit whose dynamical properties emulate those of a resistively and capacitively shunted Josephson junction (RCSJ). We show how it reproduces the switching properties of a shunted junction and its dependence on the quality factor. A thermal noise source is then used to characterize the temperature dependence of the phase dynamics. In the presence of an AC drive, phase locking is observed at integer and rational multiples of the drive frequency, and it competes with chaotic behavior when the quality factor of the junction exceeds unity. We characterize the stability of phase-locked and chaotic states in the presence of thermal noise.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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