Closed timelike curves via postselection: theory and experimental test of consistency.
Phys Rev Lett
; 106(4): 040403, 2011 Jan 28.
Article
in En
| MEDLINE
| ID: mdl-21405310
ABSTRACT
Closed timelike curves (CTCs) are trajectories in spacetime that effectively travel backwards in time a test particle following a CTC can interact with its former self in the past. A widely accepted quantum theory of CTCs was proposed by Deutsch. Here we analyze an alternative quantum formulation of CTCs based on teleportation and postselection, and show that it is inequivalent to Deutsch's. The predictions or retrodictions of our theory can be simulated experimentally we report the results of an experiment illustrating how in our particular theory the "grandfather paradox" is resolved.
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Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Phys Rev Lett
Year:
2011
Document type:
Article
Affiliation country:
United States