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arXiv 1001.0010hep-thastro-ph.COgr-qc
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最小通货膨胀

Minimal Inflation

Luis Alvarez-Gaume, Cesar Gomez, Raul Jimenez

摘要:

利用在紫外光中测量共形不变性破坏的普适X超场,我们建立了一个多场暴胀模型。潜在的动力学是一旦超对称性被打破,控制IR中这个场向Goldstino超场的自然流动的动力学。我们表明,满足慢滚条件的平坦方向存在,只有当R-对称性被打破。我们的模型的自然性导致超对称破缺的尺度为10^{11-13} Gev,初始扰动和可忽略的引力波的尺度不变的频谱。我们得到暴胀子场比引力子轻的量由慢滚参数η决定。慢滚条件的存在与超对称性和R对称性破缺尺度的值直接相关。我们对我们的模型进行宇宙学预测,并将其与当前数据进行比较。

英文摘要:

Using the universal X superfield that measures in the UV the violation of conformal invariance we build up a model of multifield inflation. The underlying dynamics is the one controlling the natural flow of this field in the IR to the Goldstino superfield once SUSY is broken. We show that flat directions satisfying the slow roll conditions exist only if R-symmetry is broken. Naturalness of our model leads to scales of SUSY breaking of the order of 10^{11-13} Gev, a nearly scale-invariant spectrum of the initial perturbations and negligible gravitational waves. We obtain that the inflaton field is lighter than the gravitino by an amount determined by the slow roll parameter eta. The existence of slow-roll conditions is directly linked to the values of supersymmetry and R-symmetry breaking scales. We make cosmological predictions of our model and compare them to current data.

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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