压缩角对介观耦合电压缩效应的影响

从无耗散的电感耦合是电路的经典运动方程出发，研究了压缩真空态下介观电感耦合电路中电荷和电流的量子涨落；着重分析了压缩幅角参数对电荷和电流量子压缩效应的影响，结果表明：在任意幅角θ下，电荷或电流的量子涨落不是随压缩参数r增加而单调地减小，而是存在着一个极小值。

INFLUENCE OF THE SQUEEZED ANGLE ON THE SQUEEZING EFFECT OF MESOSCOPIC COUPLED CIRCUIT

Starting from the classical motion equation of a non-dissipativemesoscopic inductance coupled circuit with source, it investigates the fluctuations of the charge and current in the mesoscopic inductance coupled circuit at the squeezed vacuum state, and study especially the influences of the squeezed angle on the fluctuations. The results indicate if the system is in the squeezing vacuum state, the quantum fluctuations of both circuits are related reciprocally but the fluctuations are independent with the source.Also,the squeezed effect of the charge and current is depended on the squeezing parameter γ and the squeezing angle θ as well. Moreover, the fluctuation of the charge and current does not monotonously decrease in an arbitrary squeezed angle θ, instead of has a minimum.