Discontinuous quantum evolutions in the presence of closed timelike curves
Journal Article
·
· Physical Review. D, Particles Fields
- Department of Physics, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, Illinois 60607 (United States)
We consider Deutsch's computational model of a quantum system evolving in a spacetime containing closed timelike curves. Although it is known that this model predicts nonlinear and nonunitary evolutions of the system, we demonstrate that it also gives rise to evolutions which are a discontinuous function of the input state. These discontinuities persist for the most natural modifications of Deutsch's approach.
- OSTI ID:
- 21409678
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 8 Vol. 81; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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