Information Causality and Noisy Computations

Details Information Causality and Noisy Computations Information Causality and Noisy Computations

2010-10-17

arxiv.org/abs/1010.3419v4

Physics

Quantum Physics

4+epsilon pages, 1 figure; v2. Correct typos and add email addresses. Comments are welcome. v3. A supplemental to check Tsirel

Scientific paper

We reformulate the information causality in a more general framework by adopting the results of signal propagation and computation in a noisy circuit. In our framework, the information causality leads to a broad class of Tsirelson inequalities. This fact allows us to subject information causality to experimental scrutiny. A no-go theorem for reliable nonlocal computation is also derived. Information causality prevents any physical circuit from performing reliable computations.

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