Particle content of quadratic and f (R-mu nu sigma rho) theories in (A)dS

Download

index.pdf

Date

2016-05-17

Author

Tekin, Bayram

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

240
views

79
downloads

We perform a complete decoupling of the degrees of freedom of quadratic gravity and the generic f(R-mu nu sigma rho) theory about any one of their possible vacua, i.e. maximally symmetric solutions, and find the masses of the spin-2 and spin-0 modes in explicit forms.

Subject Keywords

Gravity

URI

https://hdl.handle.net/11511/49086

Journal

PHYSICAL REVIEW D

DOI

https://doi.org/10.1103/physrevd.93.101502

Collections

Department of Physics, Article

Suggestions

OpenMETU
Core

Covariant symplectic structure and conserved charges of new massive gravity Alkaç, Gökhan; Sarıoğlu, Bahtiyar Özgür; Department of Physics (2012) We show that the symplectic current obtained from the boundary term, which arises in the first variation of a local diffeomorphism invariant action, is covariantly conserved for any gravity theory described by that action.Therefore, a Poincaré invariant two-form can be constructed on the phase space, which is shown to be closed without reference to a specific theory.Finally, we show that one can obtain a charge expression for gravity theories in various dimensions, which plays the role of the Abbott-Deser-T...
On soliton solutions of nonlinear sigma models of symmetric spaces Karasu, Emine Ayşe (2001-10-30) The inverse scattering transform technique of Belinskii-Zakharov for the integration of nonlinear sigma model equations is reviewed. N-soliton solutions of the principal chiral field equations axe given. The explicit two-complex pole soliton solutions of vacuum and electro-vacuum Ernst equations are constructed.
Massive higher derivative gravity theories Güllü, İbrahim; Tekin, Bayram; Department of Physics (2011) In this thesis massive higher derivative gravity theories are analyzed in some detail. One-particle scattering amplitude between two covariantly conserved sources mediated by a graviton exchange is found at tree-level in D dimensional (Anti)-de Sitter and flat spacetimes for the most general quadratic curvature theory augmented with the Pauli-Fierz mass term. From the amplitude expression, the Newtonian potential energies are calculated for various cases. Also, from this amplitude and the propagator structu...
Higher dimensional metrics of colliding gravitational plane waves Gurses, M; Kahya, EO; Karasu, Atalay (2002-07-15) We give a higher even dimensional extension of vacuum colliding gravitational plane waves with the combinations of collinear and noncollinear polarized four-dimensional metrics. The singularity structure of space-time depends on the parameters of the solution.
Linearization in stability in gravity theories Altaş Kiracı, Emel; Tekin, Bayram; Department of Physics (2018) In a nonlinear theory, such as gravity, physically relevant solutions are usually hard to ﬁnd. Therefore, starting from a background exact solution with symmetries, one uses the perturbation theory, which albeit approximately, provides a lot of information regarding a physical solution. But even this approximate information comes with a price: the basic premise of a perturbative solution is that it should be improvable. Namely, by going to higher order perturbation theory, one should be able to improve and ...

Citation Formats

B. Tekin, “Particle content of quadratic and f (R-mu nu sigma rho) theories in (A)dS,” PHYSICAL REVIEW D, pp. 0–0, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/49086.