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On singularity-resolution in mimetic gravity. / Brahma, Suddhasattwa; Головнев, Алексей Валерьевич; Yeom, Dong-han.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 782, 10.07.2018, p. 280-284.

Research output: Contribution to journal › Article › peer-review

Harvard

Brahma, S, Головнев, АВ & Yeom, D 2018, 'On singularity-resolution in mimetic gravity', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 782, pp. 280-284. https://doi.org/10.1016/j.physletb.2018.05.039

APA

Brahma, S., Головнев, А. В., & Yeom, D. (2018). On singularity-resolution in mimetic gravity. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 782, 280-284. https://doi.org/10.1016/j.physletb.2018.05.039

Vancouver

Brahma S, Головнев АВ, Yeom D. On singularity-resolution in mimetic gravity. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2018 Jul 10;782:280-284. https://doi.org/10.1016/j.physletb.2018.05.039

Author

Brahma, Suddhasattwa ; Головнев, Алексей Валерьевич ; Yeom, Dong-han. / On singularity-resolution in mimetic gravity. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2018 ; Vol. 782. pp. 280-284.

BibTeX

@article{ee0f80d83cb54d5b9c6c35ca21094f92,
title = "On singularity-resolution in mimetic gravity",
abstract = "Recently, it was shown that modified mimetic gravity, with a f(□ϕ) term, results in a singularity-free model of gravity, for both cosmological and black hole spacetimes [1,2]. In this work, we analyze this model further and show that, since the function f was tuned to vanish rapidly for small values of the argument, the non-singular bounce relies heavily on a subtle branch changing mechanism for the multi-valued function f. Furthermore, this mechanism has interesting implications for the proposed link between this model and loop quantum cosmology.",
author = "Suddhasattwa Brahma and Головнев, {Алексей Валерьевич} and Dong-han Yeom",
note = "Funding Information: The authors are grateful to V. Mukhanov for illuminating discussions. The authors would like to thank E. Wilson-Ewing for his insightful comments on an earlier version of this draft. This work was supported in part by the Korean Ministry of Education, Science and Technology , Gyeongsangbuk-Do and Pohang City for Independent Junior Research Groups at the Asia Pacific Center for Theoretical Physics.",
year = "2018",
month = jul,
day = "10",
doi = "10.1016/j.physletb.2018.05.039",
language = "English",
volume = "782",
pages = "280--284",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - On singularity-resolution in mimetic gravity

AU - Brahma, Suddhasattwa

AU - Головнев, Алексей Валерьевич

AU - Yeom, Dong-han

N1 - Funding Information: The authors are grateful to V. Mukhanov for illuminating discussions. The authors would like to thank E. Wilson-Ewing for his insightful comments on an earlier version of this draft. This work was supported in part by the Korean Ministry of Education, Science and Technology , Gyeongsangbuk-Do and Pohang City for Independent Junior Research Groups at the Asia Pacific Center for Theoretical Physics.

PY - 2018/7/10

Y1 - 2018/7/10

N2 - Recently, it was shown that modified mimetic gravity, with a f(□ϕ) term, results in a singularity-free model of gravity, for both cosmological and black hole spacetimes [1,2]. In this work, we analyze this model further and show that, since the function f was tuned to vanish rapidly for small values of the argument, the non-singular bounce relies heavily on a subtle branch changing mechanism for the multi-valued function f. Furthermore, this mechanism has interesting implications for the proposed link between this model and loop quantum cosmology.

AB - Recently, it was shown that modified mimetic gravity, with a f(□ϕ) term, results in a singularity-free model of gravity, for both cosmological and black hole spacetimes [1,2]. In this work, we analyze this model further and show that, since the function f was tuned to vanish rapidly for small values of the argument, the non-singular bounce relies heavily on a subtle branch changing mechanism for the multi-valued function f. Furthermore, this mechanism has interesting implications for the proposed link between this model and loop quantum cosmology.

UR - http://www.scopus.com/inward/record.url?scp=85047240781&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2018.05.039

DO - 10.1016/j.physletb.2018.05.039

M3 - Article

VL - 782

SP - 280

EP - 284

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

ER -

ID: 27451562