2010

Closed timelike curves via post-selection: theory and experimental demonstration

Lloyd, Seth, Maccone, Lorenzo, Garcia-Patron, Raul et al.

Understand

Closed timelike curves (CTCs) are trajectories in spacetime that effectively travel backwards in time: a test particle following a CTC can in principle interact with its former self in the past.

  • CTCs appear in many solutions of Einstein's field equations and any future quantum version of general relativity will have to reconcile them with the requirements of quantum mechanics and of quantum field theory.
  • A widely accepted quantum theory of CTCs was proposed by Deutsch.
  • Here we explore an alternative quantum formulation of CTCs and show that it is physically inequivalent to Deutsch's.

Built on

  • Y. Aharonov, D.Z. Albert, L. Vaidman, Phys. Rev. Lett. 60

    1988

    Earlier work this paper cites.

  • J. Friedman, et al

    1990

    Earlier work this paper cites.

  • K. Gödel, Rev. Mod. Phys. 21

    1991

    Earlier work this paper cites.

  • D. Deutsch, Phys. Rev. D 44

    1991

    Earlier work this paper cites.

  • S.-W. Kim, K.S. Thorne, Phys. Rev. D 43

    1991

    Earlier work this paper cites.

  • S. Hawking, Phys. Rev. D 46

    1992

    Earlier work this paper cites.

  • S. Deser, R. Jackiw, G. ’t Hooft, Phys. Rev. Lett. 68

    1992

    Earlier work this paper cites.

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  • J.B. Hartle, Phys. Rev. D 49

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  • R.P. Mirin, App. Phys. Lett. 84

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  • C.H. Bennett, talk at QUPON, Wien, May 2005; http://www.research.ibm.com/people/b/bennetc/

    2005

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Then

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