Coherent time evolution and boundary conditions of two-photon quantum walks in waveguide arrays

  title={Coherent time evolution and boundary conditions of two-photon quantum walks in waveguide arrays},
  author={Jasmin D. A. Meinecke and Konstantinos Poulios and Alberto Politi and Jonathan C. F. Matthews and Alberto Peruzzo and Nur Ismail and Kerstin Worhoff and Jeremy Lloyd O'Brien and Mark G. Thompson},
  journal={Physical Review A},
Multiphoton quantum walks in integrated optics comprise an attractive controlled quantum system, that can mimic less readily accessible quantum systems and exhibit behavior that cannot in general be accurately replicated by classical light without an exponential overhead in resources. The ability to observe the time evolution of such systems is important for characterizing multiparticle quantum dynamics—notably this includes the effects of boundary conditions for walks in spaces of finite size… 

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  • O. MülkenA. Blumen
  • Physics, Mathematics
    Physical review. E, Statistical, nonlinear, and soft matter physics
  • 2005
It is shown that here the first revival time turns out to be larger than for quantum carpets, and the results obtained for the Bloch function ansatz can be related to results from (discrete) generalized coined quantum walks.