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DC Field | Value | Language |
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dc.contributor.author | Bahamonde, Sebastian | - |
dc.contributor.author | Dialektopoulos, Konstantinos F. | - |
dc.contributor.author | Gakis, Viktor | - |
dc.contributor.author | Said, Jackson | - |
dc.date.accessioned | 2022-02-18T06:02:57Z | - |
dc.date.available | 2022-02-18T06:02:57Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Bahamonde, S., Dialektopoulos, K. F., Gakis, V., & Said, J. L. (2020). Reviving Horndeski theory using teleparallel gravity after GW170817. Physical Review D, 101(8), 084060. | en_GB |
dc.identifier.uri | https://www.um.edu.mt/library/oar/handle/123456789/89387 | - |
dc.description.abstract | Horndeski gravity was highly constrained from the recent gravitational wave observations by the LIGO Collaboration down to |cg/c -1 |≳10-15. In this paper, we study the propagation of gravitational waves in a recently proposed model of Horndeski gravity in which its teleparallel gravity analog is formulated. As usually done in these analyses, we consider a flat cosmological background in which curvature is replaced by torsion as the expression of gravitation. It is found that in this approach, one can construct a more general Horndeski theory satisfying cT=cg/c =1 without eliminating the coupling functions G5(ϕ ,X ) and G4(ϕ ,X ) that were highly constrained in standard Horndeski theory. Hence, in the teleparallel approach one is able to restore these terms, creating an interesting way to revive Horndeski gravity. In this way, we retain the original spirit of Horndeski gravity (unlike beyond Horndeski theories) while only changing the form in which the geometry of gravitation is expressed. | en_GB |
dc.language.iso | en | en_GB |
dc.publisher | American Physical Society | en_GB |
dc.rights | info:eu-repo/semantics/restrictedAccess | en_GB |
dc.subject | Gravitational waves | en_GB |
dc.subject | General relativity (Physics) | en_GB |
dc.subject | Scalar field theory | en_GB |
dc.subject | Lagrange equations | en_GB |
dc.subject | Ricci flow | en_GB |
dc.title | Reviving Horndeski theory using teleparallel gravity after GW170817 | en_GB |
dc.type | article | en_GB |
dc.rights.holder | The copyright of this work belongs to the author(s)/publisher. The rights of this work are as defined by the appropriate Copyright Legislation or as modified by any successive legislation. Users may access this work and can make use of the information contained in accordance with the Copyright Legislation provided that the author must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the prior permission of the copyright holder. | en_GB |
dc.description.reviewed | peer-reviewed | en_GB |
dc.identifier.doi | 10.1103/PhysRevD.101.084060 | - |
dc.publication.title | Physical Review D | en_GB |
Appears in Collections: | Scholarly Works - InsSSA |
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