Abstract:
Modified gravity theories are supposed to incorporate low-energy quantum-gravity effects and, at the same time, they could shed light into the dark matter and dark energy problems. Here we study a particular modification of general relativity where local Lorentz invariance is spontaneously broken and whose physical effects, despite a decade-long effort, were unknown. We show that, during inflation, this modification produces anisotropies that would generate measurable effects on the cosmic microwave background. Then, by using empirical constraints on the B-mode polarization spectrum, we can estimate that the "coefficient" components absolute value have to be smaller than 10-43. This is a remarkably strong limit; in fact, it is 29 orders of magnitude better than the best constraints on similar coefficients. Thus, we propose that inflation could stringently test other modified gravity theories. © 2017 American Physical Society.
Registro:
| Documento: |
Artículo
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| Título: | Inflation as an amplifier: The case of Lorentz violation |
| Autor: | Bonder, Y.; León, G. |
| Filiación: | Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Apartado Postal 70-543, Ciudad de México, 04510, Mexico
Grupo de Astrofísica, Relatividad y Cosmología, Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de la Plata, Paseo del Bosque S/N, La Plata, 1900, Argentina
Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. I, Buenos Aires, 1428, Argentina
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| Año: | 2017
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| Volumen: | 96
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| Número: | 4
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| DOI: |
http://dx.doi.org/10.1103/PhysRevD.96.044036 |
| Título revista: | Physical Review D
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| Título revista abreviado: | Phy. Rev. D
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| ISSN: | 24700010
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| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_24700010_v96_n4_p_Bonder |
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Citas:
---------- APA ----------
Bonder, Y. & León, G.
(2017)
. Inflation as an amplifier: The case of Lorentz violation. Physical Review D, 96(4).
http://dx.doi.org/10.1103/PhysRevD.96.044036---------- CHICAGO ----------
Bonder, Y., León, G.
"Inflation as an amplifier: The case of Lorentz violation"
. Physical Review D 96, no. 4
(2017).
http://dx.doi.org/10.1103/PhysRevD.96.044036---------- MLA ----------
Bonder, Y., León, G.
"Inflation as an amplifier: The case of Lorentz violation"
. Physical Review D, vol. 96, no. 4, 2017.
http://dx.doi.org/10.1103/PhysRevD.96.044036---------- VANCOUVER ----------
Bonder, Y., León, G. Inflation as an amplifier: The case of Lorentz violation. Phy. Rev. D. 2017;96(4).
http://dx.doi.org/10.1103/PhysRevD.96.044036
