Shift-symmetric orbital inflation: Single field or multifield?
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DOI: 10.1103/physrevd.102.021302
Abstract: We present a new class of two-field inflationary attractor models, known as `shift-symmetric orbital inflation', whose behaviour is strongly multi-field but whose predictions are remarkably close to those of single-field inflation. In these models, the… read more here.
Keywords: field; single field; inflation; symmetric orbital ... See more keywords