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Electronic Colloquium on Computational Complexity

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REPORTS > AUTHORS > JOHN WATROUS:
All reports by Author John Watrous:

TR08-092 | 26th August 2008
Scott Aaronson, John Watrous

Closed Timelike Curves Make Quantum and Classical Computing Equivalent

While closed timelike curves (CTCs) are not known to exist, studying their consequences has led to nontrivial insights in general relativity, quantum information, and other areas. In this paper we show that if CTCs existed, then quantum computers would be no more powerful than classical computers: both would have the ... more >>>




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