发表机构
Racah Institute of Physics, The Hebrew University（拉卡物理研究所，希伯来大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究在2+1维局部幺正紫外完备量子场论中，通过相关Yukawa形变实现自发宇称和时间反演破缺，且破缺相在高温下持续存在，无热恢复。
AI 中文摘要
我们在$2+1$维、具有有限数量场的局部、幺正、紫外完备量子场论中，提供了自发宇称和时间反演破缺且无热恢复的解析实现。该理论由临界双锥矢量模型与自由无质量狄拉克费米子乘积的相关Yukawa形变定义。此形变引发重整化群流，其红外端点为临界矢量模型与共形Gross-Neveu-Yukawa模型的解耦乘积。在零温下，真空保持两种对称性，而加热时，理论在有限临界温度下经历逆热相变。在此温度之上，费米子质量（在宇称和时间反演下为奇）被动态生成，且破缺相持续到任意高温。
英文摘要
We provide an analytic realization of spontaneous parity and time-reversal breaking without thermal restoration in a local, unitary, ultraviolet-complete quantum field theory in $2+1$ dimensions with finitely many fields. The theory is defined by a relevant Yukawa deformation of a product of the critical biconical vector model and free massless Dirac fermions. This deformation induces a renormalization group flow whose infrared endpoint is a decoupled product of the critical vector model and the conformal Gross-Neveu-Yukawa model. At zero temperature, the vacuum preserves both symmetries, whereas upon heating, the theory undergoes an inverse thermal transition at a finite critical temperature. Above this temperature, a fermion mass, odd under parity and time reversal, is dynamically generated, and the broken phase persists to arbitrarily high temperatures.
Comments9 pages, 1 figure
