论文标题
在违反符号理论中正规化热和磁性贡献
Regularizing thermo and magnetic contributions within nonrenormalizable theories
论文作者
论文摘要
研究了实施适当的正规化程序以治疗量身定性理论中的热和磁贡献的重要性。我们的研究表明，应将潜在的差异分离为真空和纯粹的磁性贡献，然后在整个动量范围内集成收敛热磁贡献。通过将适当的时间形式主义应用于两种风味polyakov-nambu-jona-lasinio模型，该处方是最近确定的。将可观察到的可观察到的人与其他三种可能的处方所提供的结果进行了比较，诸如压力，磁化速度，声音速度和评估的特定热量。我们表明，这些数量显示出一种热磁性行为，当采用我们的方案时，物理上会更加一致。特别是，我们证明，天真地调节（纠缠）真空，磁性和热磁性贡献会导致身体上不一致的结果，尤其是在高温结构域中。
The importance of implementing a proper regularization procedure in order to treat thermo and magnetic contributions within nonrenormalizable theories is investigated. Our study suggests that potential divergences should be isolated into the vacuum and purely magnetic contributions and then regularized while the convergent thermomagnetic contributions should be integrated over the full momentum range. This prescription is illustrated by applying the proper time formalism to the two flavor Polyakov--Nambu--Jona-Lasinio model, whose magnetic field dependent coupling has been recently determined. Observables such as the pressure, magnetization, speed of sound squared, and specific heat evaluated within our scheme are compared with results furnished by other three possible prescriptions. We show that these quantities display a thermomagnetic behavior which is physically more consistent when our scheme is adopted. In particular, we demonstrate that naively regulating the (entangled) vacuum, magnetic and thermomagnetic contributions leads to physically inconsistent results especially at the high temperature domain.
