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dc.contributor.author
Aguirregabiria, Juan M.  
dc.contributor.author
Chimento, Luis Pascual  
dc.contributor.author
Lazkoz, Ruth  
dc.date.available
2019-04-05T16:51:41Z  
dc.date.issued
2005-12  
dc.identifier.citation
Aguirregabiria, Juan M.; Chimento, Luis Pascual; Lazkoz, Ruth; Quintessence as k-essence; Elsevier Science; Physics Letters B; 631; 3; 12-2005; 93-99  
dc.identifier.issn
0370-2693  
dc.identifier.uri
http://hdl.handle.net/11336/73299  
dc.description.abstract
Quintessence and k-essence have been proposed as candidates for the dark energy component of the universe that would be responsible of the currently observed accelerated expansion. In this Letter we investigate the degree of resemblance between those two theoretical setups, and find that every quintessence model can be viewed as a k-essence model generated by a kinetic linear function. In addition, we show the true effects of k-essence begin at second order in the expansion of the kinetic function in powers of the kinetic energy.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Science  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Quintessence  
dc.subject
K Essence  
dc.subject
Accelerated Expansion  
dc.subject.classification
Astronomía  
dc.subject.classification
Ciencias Físicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Quintessence as k-essence  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2019-03-27T18:17:40Z  
dc.journal.volume
631  
dc.journal.number
3  
dc.journal.pagination
93-99  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Aguirregabiria, Juan M.. Universidad del País Vasco; España  
dc.description.fil
Fil: Chimento, Luis Pascual. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina  
dc.description.fil
Fil: Lazkoz, Ruth. Universidad del País Vasco; España  
dc.journal.title
Physics Letters B  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.physletb.2005.10.011  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0370269305014620  

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