Lorentzian wormholes in higher-derivative gravity and the weak energy condition
Kazuo GhorokuDepartment of Physics, Fukuoka Institute of Technology, Wajiro, Higashi-ku, Fukuoka 811-02, JapanTeruhiko SomaDepartment of Physics, Fukuoka Institute of Technology, Wajiro, Higashi-ku, Fukuoka 811-02, Japan
1992en
ABI
Abstract
The possibility of the existence of a traversible wormhole solution which does not break the weak energy condition is examined in a higher-derivative theory of gravity. No such solution is found, suggesting that a Lorentzian wormhole without the violation of the weak energy condition is incompatible with a wide class of gravitational theories. We show this in two simple examples of spherically symmetric wormhole solutions.
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