Research output: Contribution to journal › Article › peer-review
Intrinsic problems of the gravitational baryogenesis. / Arbuzova, E. V.; Dolgov, A. D.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 769, 10.06.2017, p. 171-175.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Intrinsic problems of the gravitational baryogenesis
AU - Arbuzova, E. V.
AU - Dolgov, A. D.
PY - 2017/6/10
Y1 - 2017/6/10
N2 - Modification of gravity due to the curvature dependent term in the gravitational baryogenesis scenario is considered. It is shown that this term leads to the fourth order differential equation of motion for the curvature scalar instead of the algebraic one of General Relativity (GR). The fourth order gravitational equations are generically unstable with respect to small perturbations. Non-linear in curvature terms may stabilize the solution but the magnitude of the stabilized curvature scalar would be much larger than that dictated by GR, so the standard cosmology would be strongly distorted.
AB - Modification of gravity due to the curvature dependent term in the gravitational baryogenesis scenario is considered. It is shown that this term leads to the fourth order differential equation of motion for the curvature scalar instead of the algebraic one of General Relativity (GR). The fourth order gravitational equations are generically unstable with respect to small perturbations. Non-linear in curvature terms may stabilize the solution but the magnitude of the stabilized curvature scalar would be much larger than that dictated by GR, so the standard cosmology would be strongly distorted.
KW - MODIFIED GRAVITY
KW - INFLATION
KW - ASYMMETRY
UR - http://www.scopus.com/inward/record.url?scp=85016833542&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2017.03.055
DO - 10.1016/j.physletb.2017.03.055
M3 - Article
AN - SCOPUS:85016833542
VL - 769
SP - 171
EP - 175
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: 9067606