论文标题
量子量与相对论玻色子之间的量子相关性在扩展的时空中
Quantum correlation between a qubit and a relativistic boson in an expanding spacetime
论文作者
论文摘要
我们使用量子和相对论玻色子之间的对数消极和敏感信息的量子相关来分析宇宙扩展的动力学。这些动力学量子相关性可以编码有关基础时空结构的信息，这表明在观察宇宙学中有很有希望的应用。我们发现，量子和玻色子之间的对数消极和相互信息的动力学非常相似。它们随着膨胀量和膨胀速率的生长而单调的降低。较小的动量和中型玻色子质量更有利于提取有关宇宙扩展历史的信息。然而，量子与抗体之间的量子相关性具有截然不同的行为：对数负性始终为零，并且可以通过宇宙的扩展产生互信息。较小的动量和中型抗体质量对产生相互信息有益。最后，见证了触发现象和互助的保护。
We use the quantumcorrelation of both logarithmic negativity andmutual information between a qubit and a relativistic boson to analyze the dynamics of Universe expansion. These dynamical quantum correlations can encode the information about underlying spacetime structure, which suggests a promising application in observational cosmology. We find that the dynamics of both logarithmic negativity and mutual information between the qubit and the boson are very similar. They decrease monotonically with the growth of the expansion volume and the expansion rate. Smaller momentum and medium-sized mass of boson are more favourable for extracting the information about history of Universe expansion. The quantum correlation between the qubit and the antiboson however has very different behavior: the logarithmic negativity is always zero and the mutual information can be generated through the expansion of Universe. Smaller momentum and medium-sized mass of antiboson are beneficial for the production of mutual information. Finally, the trigger phenomenon and conservation for mutual information are witnessed.
