TY - JOUR
T1 - Fundamental forces and scalar field dynamics in the early universe
AU - Kusenko, Alexander
AU - Takhistov, Volodymyr
AU - Yamada, Masaki
AU - Yamazaki, Masahito
N1 - Funding Information:
The work of A.K. and V.T. was supported by the U.S. Department of Energy Grant No. DE-SC0009937 . The work of M. Yamada was supported by an Allen Cormack Fellowship at Tufts University . The work of M. Yamazaki was supported by JSPS KAKENHI Grant No. 17KK0087 , No. 19K03820 and No. 19H00689 . A.K. and M. Yamazaki were also supported by the World Premier International Research Center Initiative (WPI), MEXT Japan.
Funding Information:
The work of A.K. and V.T. was supported by the U.S. Department of Energy Grant No. DE-SC0009937. The work of M. Yamada was supported by an Allen Cormack Fellowship at Tufts University. The work of M. Yamazaki was supported by JSPS KAKENHI Grant No. 17KK0087, No. 19K03820 and No. 19H00689. A.K. and M. Yamazaki were also supported by the World Premier International Research Center Initiative (WPI), MEXT Japan.
Publisher Copyright:
© 2020 The Author(s)
PY - 2020/5/10
Y1 - 2020/5/10
N2 - Scalar weak gravity conjectures (SWGCs) attempt to pinpoint the ranges of couplings consistent with a fundamental theory of all interactions. We identify a generic dynamical consequence of these conjectures for cosmology and show that SWGCs imply a particular behavior of the scalar fields in the early universe. A scalar field that develops a large expectation value during inflation must relax to the minimum of effective potential at a later time. SWGCs imply that a homogeneous distribution of the field is unstable with respect to fragmentation into localized lumps, which could potentially lead to significant consequences for cosmology.
AB - Scalar weak gravity conjectures (SWGCs) attempt to pinpoint the ranges of couplings consistent with a fundamental theory of all interactions. We identify a generic dynamical consequence of these conjectures for cosmology and show that SWGCs imply a particular behavior of the scalar fields in the early universe. A scalar field that develops a large expectation value during inflation must relax to the minimum of effective potential at a later time. SWGCs imply that a homogeneous distribution of the field is unstable with respect to fragmentation into localized lumps, which could potentially lead to significant consequences for cosmology.
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U2 - 10.1016/j.physletb.2020.135369
DO - 10.1016/j.physletb.2020.135369
M3 - Article
AN - SCOPUS:85082182915
SN - 0370-2693
VL - 804
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
M1 - 135369
ER -