K-essence with a polynomial equation of state

Rubén Cordero, Eduardo L. González, Alfonso Queijeiro

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We investigate the physical properties of a purely kinetic k-essence model with polynomial type equation of state motivated in superconducting membranes. We compute the equation of state parameter w and discuss the physical evolution of a universe governed by the polynomial equation of state and, using the adiabatic speed of sound and energy density, we restrict the range of parameters of the model in order to have an acceptable physical behavior.

Translated title of the contributionK-esencia con una ecuación de estado polinomial
Original languageEnglish
Title of host publicationVIII Workshop of the Gravitation and Mathematical Physics Division of the Mexican Physical Society
Pages186-190
Number of pages5
DOIs
StatePublished - 2011
Event8th Workshop of the Gravitation and Mathematical Physics Division of the Mexican Physical Society - Tuxtla Gutierrez, Chiapas, Mexico
Duration: 22 Nov 201026 Nov 2010

Publication series

NameAIP Conference Proceedings
Volume1396
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference8th Workshop of the Gravitation and Mathematical Physics Division of the Mexican Physical Society
Country/TerritoryMexico
CityTuxtla Gutierrez, Chiapas
Period22/11/1026/11/10

Keywords

  • cosmology
  • dark energy
  • k-essence

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