Information flow of quantum states interacting with closed timelike curves

Ralph, T. C. and Myers, C. R. (2010) Information flow of quantum states interacting with closed timelike curves. Physical Review A - Atomic, Molecular, and Optical Physics, 82 6: 062330-1-062330-5. doi:10.1103/PhysRevA.82.062330

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Author Ralph, T. C.
Myers, C. R.
Title Information flow of quantum states interacting with closed timelike curves
Journal name Physical Review A - Atomic, Molecular, and Optical Physics   Check publisher's open access policy
ISSN 1050-2947
1094-1622
Publication date 2010-12
Sub-type Article (original research)
DOI 10.1103/PhysRevA.82.062330
Open Access Status File (Publisher version)
Volume 82
Issue 6
Start page 062330-1
End page 062330-5
Total pages 5
Place of publication College Park, MD, United States
Publisher American Physical Society
Collection year 2011
Language eng
Abstract Recently, the quantum information processing power of closed timelike curves has been discussed. Because the most widely accepted model for quantum closed timelike curve interactions contains ambiguities, different authors have been able to reach radically different conclusions as to the power of such interactions. By tracing the information flow through such systems we are able to derive equivalent circuits with unique solutions, thus allowing an objective decision between the alternatives to be made. We conclude that closed timelike curves, if they exist and are well described by these simple models, would be a powerful resource for quantum information processing. © 2010 The American Physical Society.
Keyword Closed timelike curves
Information flows
Quantum state
Quantum-information processing
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article #062330

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Centre for Quantum Computer Technology Publications
Official 2011 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 12 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 13 times in Scopus Article | Citations
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Created: Sun, 13 Mar 2011, 00:05:55 EST