论行政真空和部门的地方化
On Infravacua and the Localisation of Sectors
摘要：
本文研究了三维无质量自由标量场的一类超选择扇区。研究表明，当在合适的“亚真空”背景前观察时，这些无法相对于真空进行定位的扇区会获得更好的定位，即在类空圆锥中。这些背景状态基本上与Kraus、Polley和Reents作为红外辐射云模型引入的一类状态相吻合。
英文摘要：
A certain class of superselection sectors of the free massless scalar field in 3 space dimensions is considered. It is shown that these sectors, which cannot be localised with respect to the vacuum, acquire a much better localisation, namely in spacelike cones, when viewed in front of suitable ``infravacuum'' backgrounds. These background states coincide, essentially, with a class of states introduced by Kraus, Polley and Reents as models for clouds of infrared radiation.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
