论文标题
关于量子达尔文主义与近似量子马克维亚性之间的关系
On the relation between quantum Darwinism and approximate quantum Markovianity
论文作者
论文摘要
文献中有很大的证据表明，量子非马克维亚性会阻碍量子达尔文主义的存在。在这封信中，我们通过利用量子条件相互信息的性质来研究开放量子系统的量子达尔文主义与近似量子马多维亚性之间的关系。我们表明，对于大约马尔可夫量子处理，条件互信息仍然具有量子darwinism的缩放特性。然后，获得了信息回流的两个一般界限，我们可以证明，量子达尔文主义的存在限制了信息回流，量子非马克维亚性必须很小。
There are strong evidences in the literature that quantum non-Markovianity would hinder the presence of Quantum Darwinism. In this Letter, we study the relation between quantum Darwinism and approximate quantum Markovianity for open quantum systems by exploiting the properties of quantum conditional mutual information. We show that for approximately Markovian quantum processes the conditional mutual information still has the scaling property for Quantum Darwinism. Then two general bounds on the backflow of information are obtained, with which we can show that the presence of Quantum Darwinism restricts the information backflow and the quantum non-Markovianity must be small.
