Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Eric V. Linder | - |
dc.date.accessioned | 2016-08-28T12:08:16Z | - |
dc.date.available | 2016-08-28T12:08:16Z | - |
dc.date.issued | 2011 | - |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.other | OAK-7991 | - |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/221963 | - |
dc.description.abstract | Cosmic acceleration can be achieved not only with a sufficiently flat scalar field potential but through kinetic terms coupled to gravity. These derivative couplings impose a shift symmetry on the scalar field, aiding naturalness. We write the most general purely kinetic action not exceeding mass dimension 6 and obeying second order field equations. The result reduces to a simple form involving a coupling of the Einstein tensor with the kinetic term and can be interpreted as adding a new term to Galileon gravity in curved spacetime. We examine the cosmological implications of the effective dark energy and classify the dynamical attractor solutions, finding a quasistable loitering phase mimicking late time acceleration by a cosmological constant. © 2011 Elsevier B.V. | - |
dc.language | English | - |
dc.title | Purely kinetic coupled gravity | - |
dc.type | Article | - |
dc.relation.issue | 2 | - |
dc.relation.volume | 703 | - |
dc.relation.index | SCIE | - |
dc.relation.index | SCOPUS | - |
dc.relation.startpage | 113 | - |
dc.relation.lastpage | 118 | - |
dc.relation.journaltitle | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | - |
dc.identifier.doi | 10.1016/j.physletb.2011.07.066 | - |
dc.identifier.wosid | WOS:000295105500002 | - |
dc.identifier.scopusid | 2-s2.0-80051899291 | - |
dc.author.google | Gubitosi G. | - |
dc.author.google | Linder E.V. | - |
dc.date.modifydate | 20160429000000 | - |