Trapping photons on the line: controllable dynamics of a quantum walk

Abstract

We demonstrate a coined quantum walk over ten steps in a one-dimensional network of linear optical elements. By applying single-point phase defects, the translational symmetry of an ideal standard quantum walk is broken resulting in localization effect in a quantum walk architecture. We furthermore investigate how the level of phase due to single-point phase defects and coin settings influence the strength of the localization signature.

5 pages, 6 figures

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Cited by in corpus (11)

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• Explicit definition of $\mathcal{P}\mathcal{T}$ symmetry for non-unitary quantum walks with gain and loss
• Perfect state transfer and efficient quantum routing: a discrete-time quantum walk approach
• Higher winding number in a non-unitary photonic quantum walk
• Non-Markovian continuous-time quantum walks on lattices with dynamical noise
• Quantum Walks with Dynamical Control: Graph Engineering, Initial State Preparation and State Transfer
• Localized State in a Two-Dimensional Quantum Walk on a Disordered Lattice
• Localization of space-inhomogeneous three-state quantum walks
• Induced on-demand revival in coined quantum walks on infinite $d$-dimensional lattices
• Coherence as resource in scattering quantum walk search on complete graph
• Shannon Entropy and Diffusion Coeffcient in Parity-Time Symmetric Quantum Walks