Distinguishing decoherence from alternative quantum theories by dynamical decoupling

  title={Distinguishing decoherence from alternative quantum theories by dynamical decoupling},
  author={Christian Arenz and Robin Hillier and Martin Fraas and Daniel Burgarth},
A long standing 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 non-zero saturation of the decoupling error in the limit of fast decoupling operations can provide evidence for alternative quantum theories. The low decay rates predicted by collapse models are challenging, but high fidelity… CONTINUE READING


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