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Generalized ghost-free quadratic curvature gravity

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Generalized ghost-free quadratic curvature gravity. / Biswas, Tirthabir; Conroy, Aindriú; S. Koshelev, Alexey et al.
In: Classical and Quantum Gravity, Vol. 31, No. 15, 159501, 14.07.2014.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Biswas, T, Conroy, A, S. Koshelev, A & Mazumdar, A 2014, 'Generalized ghost-free quadratic curvature gravity', Classical and Quantum Gravity, vol. 31, no. 15, 159501. https://doi.org/10.1088/0264-9381/31/15/159501

APA

Biswas, T., Conroy, A., S. Koshelev, A., & Mazumdar, A. (2014). Generalized ghost-free quadratic curvature gravity. Classical and Quantum Gravity, 31(15), Article 159501. https://doi.org/10.1088/0264-9381/31/15/159501

Vancouver

Biswas T, Conroy A, S. Koshelev A, Mazumdar A. Generalized ghost-free quadratic curvature gravity. Classical and Quantum Gravity. 2014 Jul 14;31(15):159501. doi: 10.1088/0264-9381/31/15/159501

Author

Biswas, Tirthabir ; Conroy, Aindriú ; S. Koshelev, Alexey et al. / Generalized ghost-free quadratic curvature gravity. In: Classical and Quantum Gravity. 2014 ; Vol. 31, No. 15.

Bibtex

@article{2f3e0d48882f458586f179b228290a64,
title = "Generalized ghost-free quadratic curvature gravity",
abstract = "In this paper we study the most general covariant action of gravity up to terms that are quadratic in curvature. In particular this includes non-local, infinite derivative theories of gravity which are ghost-free and exhibit asymptotic freedom in the ultraviolet. We provide a detailed algorithm for deriving the equations of motion for such actions containing an arbitrary number of the covariant D'Alembertian operators, and this is our main result. We also perform a number of tests on the field equations we derive, including checking the Bianchi identities and the weak-field limit. Lastly, we consider the special subclass of ghost and asymptotically free theories of gravity by way of an example.",
keywords = "hep-th, astro-ph.CO, gr-qc",
author = "Tirthabir Biswas and Aindri{\'u} Conroy and {S. Koshelev}, Alexey and Anupam Mazumdar",
note = "22 pages. Revised argument in section 3.1. Results unchanged",
year = "2014",
month = jul,
day = "14",
doi = "10.1088/0264-9381/31/15/159501",
language = "English",
volume = "31",
journal = "Classical and Quantum Gravity",
issn = "0264-9381",
publisher = "IOP Publishing",
number = "15",

}

RIS

TY - JOUR

T1 - Generalized ghost-free quadratic curvature gravity

AU - Biswas, Tirthabir

AU - Conroy, Aindriú

AU - S. Koshelev, Alexey

AU - Mazumdar, Anupam

N1 - 22 pages. Revised argument in section 3.1. Results unchanged

PY - 2014/7/14

Y1 - 2014/7/14

N2 - In this paper we study the most general covariant action of gravity up to terms that are quadratic in curvature. In particular this includes non-local, infinite derivative theories of gravity which are ghost-free and exhibit asymptotic freedom in the ultraviolet. We provide a detailed algorithm for deriving the equations of motion for such actions containing an arbitrary number of the covariant D'Alembertian operators, and this is our main result. We also perform a number of tests on the field equations we derive, including checking the Bianchi identities and the weak-field limit. Lastly, we consider the special subclass of ghost and asymptotically free theories of gravity by way of an example.

AB - In this paper we study the most general covariant action of gravity up to terms that are quadratic in curvature. In particular this includes non-local, infinite derivative theories of gravity which are ghost-free and exhibit asymptotic freedom in the ultraviolet. We provide a detailed algorithm for deriving the equations of motion for such actions containing an arbitrary number of the covariant D'Alembertian operators, and this is our main result. We also perform a number of tests on the field equations we derive, including checking the Bianchi identities and the weak-field limit. Lastly, we consider the special subclass of ghost and asymptotically free theories of gravity by way of an example.

KW - hep-th

KW - astro-ph.CO

KW - gr-qc

U2 - 10.1088/0264-9381/31/15/159501

DO - 10.1088/0264-9381/31/15/159501

M3 - Journal article

VL - 31

JO - Classical and Quantum Gravity

JF - Classical and Quantum Gravity

SN - 0264-9381

IS - 15

M1 - 159501

ER -