โ Scribed by Hideaki Takayanagi
No coin nor oath required. For personal study only.
Photon-assisted macroscopic quantum tunneling in a slightly current-biased Josephson junction with a small capacitance and a low damping factor is proposed to occur between the quantized energy levels in adjacent potential wells by photon absorption or emission. The tunneling rate is calculated by the harmonic potential approximation of the wells. Voltage spikes appear in the superconducting branch of the I-V characteristics due to phase slippage. The magnitude and the duration of these voltage spikes are also discussed.
๐ SIMILAR VOLUMES
We have theoretically investigated macroscopic quantum tunneling (MQT) for a stack of capacitively and inductively coupled intrinsic-junctions. By use of the functional integral method, we have analytically derived the MQT escape rate and found that the inductive coupling reduces the potential barri
We theoretically investigate macroscopic quantum tunneling (MQT) in a current-biased p junction with a superconductor (S) and an insulating ferromagnet (IF). By using the functional integral method and the instanton approximation, the influence of the quasiparticle dissipation on MQT is found to be