CHAICHIAN, Masud, Amir GHALEE and Josef KLUSOŇ. Restricted f (R) gravity and its cosmological implications. Physical review D. American Physical Society, 2016, vol. 93, No 10, p. "nestrankovano", 12 pp. ISSN 2470-0010. Available from: https://dx.doi.org/10.1103/PhysRevD.93.104020.
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Basic information
Original name Restricted f (R) gravity and its cosmological implications
Name in Czech Omezená f(R) gravitace a její kosmologické implikace
Authors CHAICHIAN, Masud (246 Finland), Amir GHALEE (364 Islamic Republic of Iran) and Josef KLUSOŇ (203 Czech Republic, guarantor, belonging to the institution).
Edition Physical review D, American Physical Society, 2016, 2470-0010.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10301 Atomic, molecular and chemical physics
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 4.557
RIV identification code RIV/00216224:14310/16:00088777
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1103/PhysRevD.93.104020
UT WoS 000376005900005
Keywords (in Czech) Hořavova-Lifšicova gravitace; kvantová gravitace
Keywords in English Horava-Lifshitz gravity; Quantum Gravity
Tags AKR, rivok
Tags International impact, Reviewed
Changed by Changed by: Ing. Andrea Mikešková, učo 137293. Changed: 13/4/2017 20:58.
Abstract
We investigate the f(R) theory of gravity with broken diffeomorphism due to the change of the coefficient in front of the total divergence term in the (3 + 1) decomposition of the scalar curvature. We perform the canonical analysis of this theory and show that its consistent form, i.e. with no unphysical degrees of freedom, is equivalent to the low-energy limit of the nonprojectable f(R) Horava-Lifshitz theory of gravity. We also analyze its cosmological solutions and show that the de Sitter solution can be obtained also in the case of this broken symmetry. The consequences of the proposed theory on the asymptotic solutions of a few specific models in the cosmological context are also presented.
Abstract (in Czech)
Zkoumáme f(R) teorii gravitace s porušeným diffeomorfismem. Provedeme kanonickou analýzu této teorie a zkoumáme její konsistenci. Také analyzujeme kosmologická řešení.
Links
GBP201/12/G028, research and development projectName: Ústav Eduarda Čecha pro algebru, geometrii a matematickou fyziku
Investor: Czech Science Foundation
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