Recovering P(X) from a canonical complex field
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DOI: 10.1088/1475-7516/2018/11/023
Abstract: We study the correspondence between models of a self-interacting canonical complex scalar field and P(X)-theories/shift-symmetric k-essence. Both describe the same background cosmological dynamics, provided that the amplitude of the complex scalar is frozen modulo the… read more here.
Keywords: field; dispersion relation; complex field; canonical complex ... See more keywords