论文标题
rényi的熵和无质量复杂玻色子的消极性在保形界面和连接处
Rényi entropy and negativity for massless complex boson at conformal interfaces and junctions
论文作者
论文摘要
我们考虑由$ m $ m $的无质量复合玻色子组成的理论的基态，并通过共形界面结合在一起。我们计算了rényi的熵和一般电线的通用分区的消极情绪，从而概括了在最近的自由费米子中开发的方法。这些纠缠措施表明了与系统大小的对数增长，并且通用的预成分既取决于界面和两部分的细节。我们测试了对谐波链的确切数值结果的分析预测。
We consider the ground state of a theory composed by $M$ species of massless complex bosons in one dimension coupled together via a conformal interface. We compute both the Rényi entropy and the negativity of a generic partition of wires, generalizing the approach developed in a recent work for free fermions. These entanglement measures show a logarithmic growth with the system size, and the universal prefactor depends both on the details of the interface and the bipartition. We test our analytical predictions against exact numerical results for the harmonic chain.
