An equation of state for purely kinetic k-essence inspired by cosmic topological defects
Abstract We investigate the physical properties of a purely kinetic k-essence model with an equation of state motivated in superconducting membranes. We compute the equation of state parameter w and discuss its physical evolution via a nonlinear equation of state. Using the adiabatic speed of sound...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
SpringerOpen
2017-06-01
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Series: | European Physical Journal C: Particles and Fields |
Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-017-4913-7 |