流体中的超希格斯机制
The Super-Higgs Mechanism in Fluids
摘要：
当场论应力-能量张量具有非零真空期望值时，超对称性自发破缺。在局域超对称场论中，无质量的引力子和戈尔茨坦引力子通过超希格斯机制结合成一个有质量的引力子。我们在四维流体中研究这种机制，其中应力-能量张量的真空期望值自发地打破超对称性和洛伦兹对称性。我们考虑常数以及时空依赖的理想流体。我们推导出了引力子质量与流体速度、能量密度和压力的关系式。我们讨论了一些现象学的影响。
英文摘要：
Supersymmetry is spontaneously broken when the field theory stress-energy tensor has a non-zero vacuum expectation value. In local supersymmetric field theories the massless gravitino and goldstino combine via the super-Higgs mechanism to a massive gravitino. We study this mechanism in four-dimensional fluids, where the vacuum expectation value of the stress-energy tensor breaks spontaneously both supersymmetry and Lorentz symmetry. We consider both constant as well as space-time dependent ideal fluids. We derive a formula for the gravitino mass in terms of the fluid velocity, energy density and pressure. We discuss some of the phenomenological implications.
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