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Paper detail

Distinguishing decoherence from alternative quantum theories by dynamical decoupling

A longstanding challenge in the foundations of quantum mechanics is the verification of alternative collapse theories despite their mathematical similarity to decoherence. To this end, we suggest a novel method based on dynamical decoupling. Experimental observation of nonzero saturation of the decoupling error in the limit of fast decoupling operations can provide evidence for alternative quantum theories. As part of the analysis we prove that unbounded Hamiltonians can always be decoupled, and provide novel dilations of Lindbladians.

preprint2015arXivOpen access
Christian ArenzRobin HillierMartin FraasDaniel Burgarth
quant-ph
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Christian ArenzRobin HillierMartin FraasDaniel Burgarth

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