论文标题
挤压热浴中量子渔民信息的动力学
Dynamics of quantum Fisher information in a squeezed thermal bath
论文作者
论文摘要
在本文中，研究了量子渔民与挤压热环境相互作用的量子渔民信息的动力学。获得量子的最佳初始状态，环境温度和相互作用时间，从而最大程度地提高了量子渔民信息。根据环境的欧姆，我们比较了环境中欧姆，亚欧马和超级欧摩的量子渔民信息的动力学。此外，可以表明，参数的精确估计是可靠的，可抵抗挤压。
In this paper, the dynamics of quantum Fisher information of a qubit interacting with a squeezed thermal environment are studied. The optimal initial state of the qubit, the temperature of the environment, and the interaction time, which maximize quantum Fisher information are obtained. Based on the ohmicity of the environment, we compare the dynamics of quantum Fisher information in ohmic, sub-ohmic, and super-ohmic regimes of the environment. Moreover, it is shown that the precise estimation of parameters is robust against squeezing.
