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Proceedings Paper

Cyclic quantum walks: photonic realization and decoherence analysis
Author(s): F. Nejadsattari; Y. Zhang; M. N. Jayakody; F. Bouchard; H. Larocque; A. Sit; R. Fickler; E. Cohen; E. Karimi
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Paper Abstract

Quantum walks serve as novel tools for performing efficient quantum computation and simulation. In a recent experimental demonstration [1] we have realized photonic quantum walks for simulating cyclic quantum systems, such as hexagonal lattices or aromatic molecules like benzene. In that experiment we explored the wave function dynamics and the probability distribution of a quantum particle located on a six-site system (with periodic boundary conditions), alongside with simpler demonstration of three- and four-site systems, under various initial conditions. Localization and revival of the wave function were demonstrated. After revisiting that experiment we will theoretically analyze the case of noisy quantum walks by implementing the bit-phase flip channel. This will allow us to draw conclusions regarding the performance of our photonic quantum simulation in noisy environments. Finally, we will briefly outline some future directions.

Paper Details

Date Published: 28 February 2020
PDF: 8 pages
Proc. SPIE 11295, Advanced Optical Techniques for Quantum Information, Sensing, and Metrology, 1129503 (28 February 2020); doi: 10.1117/12.2546566
Show Author Affiliations
F. Nejadsattari, Univ. of Ottawa (Canada)
Y. Zhang, Univ. of Ottawa (Canada)
National Research Council of Canada (Canada)
M. N. Jayakody, Bar-Ilan Univ. (Israel)
F. Bouchard, Univ. of Ottawa (Canada)
National Research Council of Canada (Canada)
H. Larocque, Univ. of Ottawa (Canada)
Massachusetts Institute of Technology (United States)
A. Sit, Univ. of Ottawa (Canada)
R. Fickler, Univ. of Ottawa (Canada)
Tampere Univ. (Finland)
E. Cohen, Univ. of Ottawa (Canada)
Bar-Ilan Univ. (Israel)
E. Karimi, Univ. of Ottawa (Canada)

Published in SPIE Proceedings Vol. 11295:
Advanced Optical Techniques for Quantum Information, Sensing, and Metrology
Philip R. Hemmer; Alan L. Migdall; Zameer Ul Hasan, Editor(s)

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