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Quantum optics

An entangled walk of photons

By harnessing the quantum nature of light and guiding the light through a network of circuits integrated in a glass chip, it is possible to mimic fundamental particles undergoing a quantum walk.

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Figure 1: Classical and quantum walks.
Figure 2: Discrete quantum walk on a photonic chip.


  1. *This News & Views article was published online on 21 March 2012.


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Correspondence to Mark G. Thompson.

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Matthews, J., Thompson, M. An entangled walk of photons. Nature 484, 47–48 (2012).

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