Interaction of a mesoscopic Josephson junction with the second-order excitation of the even coherent state
Zhao-Xian Yu, Zhi-Yong Jiao, Zhi-Ming Bai
The interaction of a mesoscopic Josephson junction with the second-order excitation of the even coherent state is investigated. It is found that the expectation value and the fluctuation of supercurrent can exhibit dc components. The static supercurrent flows in the positive or negative direction, which depends on the phase of the light field. It is shown that the dc components of the supercurrent fluctuation are also related to the phase of the light field.
Journal of Optics B Quantum and Semiclassical Optics•Dec 1, 2000•0 citations