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arXiv 1706.05232hep-thhep-ph
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空间调制量子系统中的超对称破缺

Supersymmetry Breaking in Spatially Modulated Vacua

Muneto Nitta, Shin Sasaki, Ryo Yokokura

摘要:

本文在超对称场论中研究了空间调制的稳定或亚稳定真空中的自发超对称破缺。这种空间调制可以在更高阶导数手征模型中实现,其中真空能量是正的、负的或零,这取决于模型参数。出现了一个Nambu-Goldstone玻色子,它与平移对称性和$U(1)$对称性的自发破缺有关,但没有二次动力学项,在调制方向上有一个四次导数项,以及一个无间隙的Higgs模。结果表明,在能量为正的亚稳真空中,出现了与超对称破缺有关的Goldstino,而在负能真空中,Goldstino变成了费米子鬼,在零能真空中,Goldstino从物理扇区消失。

英文摘要:

We study spontaneous supersymmetry breaking in spatially modulated stable or meta-stable vacua in supersymmetric field theories. Such spatial modulation can be realized in a higher derivative chiral model for which vacuum energies are either positive, negative or zero, depending on the model parameters. There appears a Nambu-Goldstone boson associated with the spontaneously breaking of the translational and $U(1)$ symmetries without the quadratic kinetic term and with a quartic derivative term in the modulated direction, and a gapless Higgs mode. We show that there appears a Goldstino associated with the supersymmetry breaking at a meta-stable vacuum, where energy is positive, while it becomes a fermionic ghost in the negative energy vacuum, and zero norm state and disappears from the physical sector in the zero energy vacuum.

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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