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arXiv 1012.2404hep-th
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级联规范理论等离子体中的手征对称性破缺

Chiral symmetry breaking in cascading gauge theory plasma

Alex Buchel

摘要:

Klebanov的N=1超对称SU(K+P)xSU(K)级联规范理论[1,2]在T_c=0.6141111(3)λ处经历了一阶有限温度约束/解约束相变,其中λ是理论的强耦合标度。et.al该理论的非精细化阶段具有完整的手征对称性,向下延伸到T_u=0.8749(0)T_c,在此阶段由于流体力学(声)模的凝聚而变得微扰不稳定。结果表明,当T_cSB =0.882503(0)T_c > T_u时,级联等离子体的退禁闭相对手征对称性破缺凝聚的发展是微扰不稳定的。我们证明了当T<T_cSB时级联等离子体的基态不可能是均匀的和各向同性的。

英文摘要:

N=1 supersymmetric SU(K+P)xSU(K) cascading gauge theory of Klebanov et.al [1,2] undergoes a first-order finite temperature confinement/deconfinement phase transition at T_c=0.6141111(3) Lambda, where Lambda is the strong coupling scale of the theory. The deconfined phase of the theory, with the unbroken chiral symmetry, extends down to T_u=0.8749(0) T_c, where it becomes perturbatively unstable due to the condensation of the hydrodynamic (sound) modes. We show that at T_cSB =0.882503(0) T_c > T_u the deconfined phase of the cascading plasma is perturbatively unstable towards development of the chiral symmetry breaking condensates. We present evidence that the ground state of the cascading plasma for T<T_cSB can not be homogeneous and isotropic.

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