Thermal phases of D1-branes on a circle from lattice super Yang-Mills

Thermal phases of D1-branes on a circle from lattice super Yang-Mills
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来自晶格超级杨米尔斯的 D1-膜在圆上的热相

DOI:
10.1007/jhep12(2010)022
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发表时间:
2010
影响因子:
5.4
通讯作者:
Catterall S
Catterall S
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Catterall S

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本文报道了有限温度下具有最大超对称性的1+1维SU(N)Yang-Mills理论的数值模拟结果。对于大的N,这个系统被认为提供了圆上N个重合的D_1膜的去耦合极限的双重描述。提出了在大N下,全息引力对中存在与Gregory-Laflamme(GL)相变相关的强耦合相变。在高温极限下,存在与空间Polyakov环相关的退禁闭相变,并提出这是强耦合GL相变的延续。研究了SU(3)和SU(4)的格论,并研究了时间和空间Polyakov环,我们找到了支持这一点的证据。特别是,在强耦合情况下,我们看到相变对引力预测的耦合具有参数依赖性。有趣的是,我们从晶格数据中估计了GL相变温度,这在引力对中还不是直接已知的。通过使用具有精确超对称性的晶格作用量,避免了晶格理论中的微调。
We report on the results of numerical simulations of 1+ 1 dimensional SU (N) Yang-Mills theory with maximal supersymmetry at finite temperature and compactified on a circle. For large N this system is thought to provide a dual description of the decoupling limit of N coincident D1-branes on a circle. It has been proposed that at large N there is a phase transition at strong coupling related to the Gregory-Laflamme (GL) phase transition in the holographic gravity dual. In a high temperature limit there was argued to be a deconfinement transition associated to the spatial Polyakov loop, and it has been proposed that this is the continuation of the strong coupling GL transition. Investigating the theory on the lattice for SU (3) and SU (4) and studying the time and space Polyakov loops we find evidence supporting this. In particular at strong coupling we see the transition has the parametric dependence on coupling predicted by gravity. We estimate the GL phase transition temperature from the lattice data which, interestingly, is not yet known directly in the gravity dual. Fine tuning in the lattice theory is avoided by the use of a lattice action with exact supersymmetry.
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