High Energy Physics - Theory
[Submitted on 2 Mar 2012
(v1)
, last revised 18 Apr 2013 (this version, v2)]
Title: The covariance of multi-field perturbations, pseudo-susy and f_NL
Title: 多场扰动的协方差，伪超对称性和 f_NL
Abstract: We reconsider cosmological perturbation theory for multi-component scalars, enforcing covariance in field-space, and ensuring that phyical observations are independent of field re-definitions. We use the formalism to clarify some issues in the literature, and use pseudo-supersymmetry to derive exact expressions for terms of interest.
Submission history
From: Paul M. Saffin [view email][v1] Fri, 2 Mar 2012 09:13:55 UTC (34 KB)
[v2] Thu, 18 Apr 2013 13:12:24 UTC (35 KB)
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