Higher-order squeezing degree in mesoscopic Josephson junction in the presence of nonclassical radiation field

摘要

Higher-order squeezing degree in mesoscopic Josephson junction of a circular superconducting ring can be improved if the electromagnetic field is initially in a successive squeezed vacuum state. We compare our method with the? usual procedure for higher order squeezing and consider the effect of different small inductances on the 2Nth-order squeezing degree for quantum current. [References: 6]