标题： (2+1)维Georgi-Glashow模型在有夸克和无夸克情况下的有限温度行为 显示英文标题

标题： Finite-temperature behavior of the (2+1)D Georgi-Glashow model with and without quarks

摘要： (2+1)-维Georgi-Glashow模型及其SU(N)推广在非零温度下以及希格斯玻色子不具有无限质量的情况下被研究。希格斯玻色子质量的有限性导致了各种新颖效应的出现。这些效应包括两个独立相变的出现以及弱耦合近似参数的上限，这是为了保持希格斯真空的随机性所必需的。此外，还讨论了由于引入无质量夸克而导致的模型有限温度行为的修改。 显示英文摘要

摘要： (2+1)-dimensional Georgi-Glashow model and its SU(N)-generalization are explored at nonzero temperatures and in the regime when the Higgs boson is not infinitely heavy. The finiteness of the Higgs-boson mass leads to various novel effects. Those include the appearance of two separate phase transitions and of the upper bound on the parameter of the weak-coupling approximation, necessary to maintain the stochasticity of the Higgs vacuum. The modification of the finite-temperature behavior of the model emerging due to the introduction of massless quarks is also discussed.