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arXiv 0706.0695hep-thhep-lathep-ph
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模糊球上单个标量场的有限温度相变

Finite temperature phase transition of a single scalar field on a fuzzy sphere

C. R. Das, S. Digal, T. R. Govindarajan

摘要:

利用蒙特卡罗模拟研究了模糊球上中性标量场的有限温度相变。我们在时间方向上使用零模,而更高模的影响由r的温度依赖性来考虑。在数值计算中,我们采用了“伪热浴”方法,大大减少了自相关。我们的结果与传统的计算结果一致。我们报告了一些新的结果,表明亚稳态的存在,并建议适当选择的参数的对称性破缺过渡是一阶的。

英文摘要:

We study finite temperature phase transition of neutral scalar field on a fuzzy sphere using Monte Carlo simulations. We work with the zero mode in the temporal directions, while the effects of the higher modes are taken care by the temperature dependence of r. In the numerical calculations we use "pseudo-heatbath" method which reduces the auto-correlation considerably. Our results agree with the conventional calculations. We report some new results which show the presence of meta-stable states and also suggest that for suitable choice of parameters the symmetry breaking transition is of first order.

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。

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