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Experimentally simulating quantum walks with self-collimated light.

ABSTRACT: In self-collimated photonic crystal, periodically arranged air holes of sub-wavelength scale provide flattened equi-frequency curves perpendicular to the ?M direction, which allow light or photons propagating in a quasi-uniform medium without diffraction. Here we for the first time experimentally simulate four-step single-photon discrete time quantum walks with classical light in such a photonic crystal chip fabricated on silicon-on-insulator. Similarities between theoretical expectations and experimental results are higher than 0.98. The functional area is compact and can be extended to construct more complicated linear quantum circuits.

SUBMITTER: Qi F

PROVIDER: S-EPMC4926089 | biostudies-other | 2016

REPOSITORIES: biostudies-other

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Experimentally simulating quantum walks with self-collimated light.

Qi F F Wang Y F YF Ma Q Y QY Zheng W H WH

Scientific reports 20160629

In self-collimated photonic crystal, periodically arranged air holes of sub-wavelength scale provide flattened equi-frequency curves perpendicular to the ΓM direction, which allow light or photons propagating in a quasi-uniform medium without diffraction. Here we for the first time experimentally simulate four-step single-photon discrete time quantum walks with classical light in such a photonic crystal chip fabricated on silicon-on-insulator. Similarities between theoretical expectations and ex ...[more]

PMID: 27353428

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