A new time-machine model with compact vacuum core

Details A new time-machine model with compact vacuum core A new time-machine model with compact vacuum core

2005-03-17

arxiv.org/abs/gr-qc/0503077v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 pages

Scientific paper

10.1103/PhysRevLett.95.021101

We present a class of curved-spacetime vacuum solutions which develope closed timelike curves at some particular moment. We then use these vacuum solutions to construct a time-machine model. The causality violation occurs inside an empty torus, which constitutes the time-machine core. The matter field surrounding this empty torus satisfies the weak, dominant, and strong energy conditions. The model is regular, asymptotically-flat, and topologically-trivial. Stability remains the main open question.

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