Light-like propagation of self-interacting Klein–Gordon fields in cosmology

Felipe A. Asenjo; Sergio A. Hojman

doi:10.1140/epjp/s13360-021-02266-2

Light-like propagation of self-interacting Klein–Gordon fields in cosmology

Research output: Contribution to journal › Article › peer-review

Abstract

It is showed that complex scalar fields with a self-interaction potential may propagate along null geodesics on isotropic flat Friedmann–Lemaître–Robertson–Walker universes with different time-dependent scale factors. This effect appears for certain kinds of self-interactions only, for different forms of potentials, and even for the massive case.

Original language	English
Article number	20
Journal	European Physical Journal Plus
Volume	137
Issue number	1
DOIs	https://doi.org/10.1140/epjp/s13360-021-02266-2
State	Published - Jan 2022
Externally published	Yes

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10.1140/epjp/s13360-021-02266-2

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abstract = "It is showed that complex scalar fields with a self-interaction potential may propagate along null geodesics on isotropic flat Friedmann–Lema{\^i}tre–Robertson–Walker universes with different time-dependent scale factors. This effect appears for certain kinds of self-interactions only, for different forms of potentials, and even for the massive case.",

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Light-like propagation of self-interacting Klein–Gordon fields in cosmology

Abstract

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