Do the laws of physics permit closed timelike curves?

Details Do the laws of physics permit closed timelike curves? Do the laws of physics permit closed timelike curves?

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991nyasa.631..182t&link_type=abstract

(Nonlinear problems in relativity and cosmology; Proceedings of the 6th Florida Workshop in Nonlinear Astronomy, Gainesville, Oc

Physics

Optics

10

Cauchy Problem, Quantum Theory, Relativity, Space-Time Functions, Time Marching, Geometrical Optics, Quantum Mechanics, Self Consistent Fields, Wentzel-Kramer-Brillouin Method

Scientific paper

The possibility of creating time machines using closed timelike curves (CTCs) is addressed. The ways that the laws of physics might prevent the creation of such time machines are considered, including the instability of the Cauchy horizon, the enforcement of the averaged null energy condition, and the impossibility of creating wormholes. Finally, the question of whether the Cauchy problem for simple physical systems is well posed in spacetimes with CTCs is addressed.

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