Towards a holographic model of color superconductivity
Towards a holographic model of color superconductivity
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DOI：
10.1088/1367-2630/13/5/055001
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发表时间：
2011-01
影响因子：
3.3
通讯作者：
Pallab Basu;F. Nogueira;M. Rozali;J. Stang;M. Raamsdonk
中科院分区：
文献类型：
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作者：
Pallab Basu;F. Nogueira;M. Rozali;J. Stang;M. Raamsdonk
在本文中，我们讨论了引力系统中应该出现的基本元素，该引力系统与在大重子密度下显示颜色超导性的限制规范理论对偶。我们考虑一个具有这些最小元素的简单系统，并表明，对于一系列参数，该模型的相结构作为温度和重子化学势的函数，表现出可以用双场理论中的受限、解域和彩色超导相来识别的相。我们发现超导相消失的临界温度非常小（相对于化学势）。这个小数字是由动力学产生的，与我们研究的模型中的任何小参数无关。我们讨论表现出风味超导性的类似模型。
In this paper, we discuss the basic elements that should appear in a gravitational system that is dual to a confining gauge theory displaying color superconductivity at large baryon density. We consider a simple system with these minimal elements and show that for a range of parameters, the phase structure of this model as a function of temperature and baryon chemical potential exhibits phases that can be identified with confined, deconfined and color superconducting phases in the dual field theory. We find that the critical temperature at which the superconducting phase disappears is remarkably small (relative to the chemical potential). This small number arises from the dynamics and is unrelated to any small parameter in the model that we study. We discuss similar models that exhibit flavor superconductivity.