论文标题
熵不确定性的下限,用于与dzyaloshinskii-moriya相互作用的双Quity系统耦合到自旋链
Entropic uncertainty lower bound for a two-qubit system coupled to a spin chain with Dzyaloshinskii-Moriya interaction
论文作者
论文摘要
不确定性原理是量子理论的关键概念之一。该原则指出,不可能同时准确地测量两个不相容的可观察结果。在量子信息理论中,不确定性原理是使用熵概念提出的。在这项工作中,我们考虑存在量子记忆的熵不确定性关系。我们研究了与Dzyaloshinskii-Moriya相互作用结合的两数量子量子系统结合的熵不确定性的动力学,我们研究了环境参数对熵不确定性结合的影响。值得注意的是,我们的结果表明,存在一些可以更改以抑制熵不确定性结合的环境参数。
The uncertainty principle is one of the key concepts in quantum theory. This principle states that it is not possible to measure two incompatible observables simultaneously and accurately. In quantum information theory, the uncertainty principle is formulated using the concept of entropy. In this work we consider the entropic uncertainty relation in the presence of quantum memory. We study the dynamics of entropic uncertainty bound for a two-qubit quantum system coupled to a spin chain with Dzyaloshinskii-Moriya interaction and we investigate the effect of environmental parameters on the entropic uncertainty bound. Notably, our results reveal that there exist some environmental parameters which can be changed to suppress the entropic uncertainty bound.