Quantum Walks With Neutral Atoms: Quantum Interference Effects of One and Two Particles

  title={Quantum Walks With Neutral Atoms: Quantum Interference Effects of One and Two Particles},
  author={Carsten Robens and Stefan Brakhane and Dieter Meschede and Andrea Alberti},
  journal={arXiv: Quantum Physics},
We report on the state of the art of quantum walk experiments with neutral atoms in state-dependent optical lattices. We demonstrate a novel state-dependent transport technique enabling the control of two spin-selective sublattices in a fully independent fashion. This transport technique allowed us to carry out a test of single-particle quantum interference based on the violation of the Leggett-Garg inequality and, more recently, to probe two-particle quantum interference effects with neutral… 
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