https://doi.org/10.1140/epjc/s10052-019-7011-1
Regular Article - Theoretical Physics
Quantum creation of traversable wormholes ex nihilo in Gauss–Bonnet-dilaton gravity
1
Center for Theoretical Physics of the Universe, Institute for Basic Science, Daejeon, 34051, Republic of Korea
2
Asia Pacific Center for Theoretical Physics, Pohang, 37673, Republic of Korea
3
Department of Physics, POSTECH, Pohang, 37673, Republic of Korea
4
Department of Physics Education, Pusan National University, Busan, 46241, Republic of Korea
5
Research Center for Dielectric and Advanced Matter Physics, Pusan National University, Busan, 46241, Republic of Korea
* e-mail: innocent.yeom@gmail.com
Received:
17
February
2019
Accepted:
31
May
2019
Published online:
11
June
2019
We investigate a nucleation of a Euclidean wormhole and its analytic continuation to Lorentzian signatures in Gauss–Bonnet-dilaton gravity, where this model can be embedded by the type-II superstring theory. We show that there exists a Euclidean wormhole solution in this model by choosing a suitable shape of the dilaton potential. After the analytic continuation, this explains a quantum creation of a time-like traversable wormhole. Finally, we discuss relations to the information loss problem and the current literature.
© The Author(s), 2019
