Reduced quantum fluctuation in mesoscopic Josephson junction with Schrödinger-cat state field
Shao Bin, Zou Jian · Acta Physica Sinica (Overseas Edition) · 1999
We consider the system of a mesoscopic Josephson junction interacting with a quantized radiation field and investigate the fluctuation properties of the junction variables with time evolution. Our results show that, due to the quantum entanglement between the field and junction, the mesoscopic Josephson junction subsystem can exhibit squeezing behavior.