TY - JOUR
T1 - New synthesis of matter and gravity
T2 - A nongravitating scalar field
AU - Cho, Inyong
AU - Kim, Hyeong Chan
PY - 2013/9/19
Y1 - 2013/9/19
N2 - We present a new manifestation of the nonlinearity of gravity-matter interactions. We show explicitly that there exists a nongravitating dynamical scalar field solution in Eddington-inspired Born-Infeld gravity. This kind of solution has not been found in previous literature based on general relativity or other modified gravity theories. The perturbation analysis shows that the solution is a late-time attractor if the scalar field rolls down the potential. This indicates that there are two weak-gravity regimes in the theory - one in the general relativity regime, and the other in the Eddington regime.
AB - We present a new manifestation of the nonlinearity of gravity-matter interactions. We show explicitly that there exists a nongravitating dynamical scalar field solution in Eddington-inspired Born-Infeld gravity. This kind of solution has not been found in previous literature based on general relativity or other modified gravity theories. The perturbation analysis shows that the solution is a late-time attractor if the scalar field rolls down the potential. This indicates that there are two weak-gravity regimes in the theory - one in the general relativity regime, and the other in the Eddington regime.
UR - http://www.scopus.com/inward/record.url?scp=84885011813&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.88.064038
DO - 10.1103/PhysRevD.88.064038
M3 - Article
AN - SCOPUS:84885011813
SN - 1550-7998
VL - 88
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 6
M1 - 064038
ER -