Extreme Decoherence and Quantum Chaos.

  title={Extreme Decoherence and Quantum Chaos.},
  author={Zhenyu Xu and Luis Pedro Garc{\'i}a-Pintos and Aur{\'e}lia Chenu and Adolfo del Campo},
  journal={Physical review letters},
  volume={122 1},
We study the ultimate limits to the decoherence rate associated with dephasing processes. Fluctuating chaotic quantum systems are shown to exhibit extreme decoherence, with a rate that scales exponentially with the particle number, thus exceeding the polynomial dependence of systems with fluctuating k-body interactions. Our findings suggest the use of quantum chaotic systems as a natural test bed for spontaneous wave function collapse models. We further discuss the implications on the… 

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