TY  - JOUR
AU  - Magalhaes, R. B.
AU  - Maso-Ferrando, A.
AU  - Olmo, G. J.
AU  - Crispino, L. C. B.
PY  - 2023
DA  - 2023//
TI  - Asymmetric wormholes in Palatini f (R) gravity: Energy conditions, absorption, and quasibound states
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 024063
EP  - 20pp
VL  - 108
IS  - 2
PB  - Amer Physical Soc
AB  - We investigate the scalar absorption spectrum of wormhole solutions constructed via the recently developed thin-shell formalism for Palatini f(R) gravity. Such wormholes come from the matching of two Reissner-Nordstrom spacetimes at a timelike hypersurface (shell), which, according to the junction conditions in Palatini f(R), can be stable and have either positive or negative energy density. In particular, we identified a new physically interesting configuration made out of two overcharged Reissner-Nordstrom spacetimes, whose absorption profile departs from that of black holes and other previously considered wormholes in the whole range of frequencies. Unlike in symmetric wormhole solutions, the asymmetry of the effective potential causes the dilution of the resonances associated to the quasibound states for the high -frequency regime. Therefore, slight asymmetries in wormhole space-times could have a dramatic impact on the observable features associated to resonant states.
SN  - 2470-0010
UR  - https://arxiv.org/abs/2303.03924
UR  - https://doi.org/10.1103/PhysRevD.108.024063
DO  - 10.1103/PhysRevD.108.024063
LA  - English
N1  - WOS:001055237800002
ID  - Magalhaes_etal2023
ER  -