Cyclic quantum walks: photonic realization and decoherence analysis
| Autor: | Frédéric Bouchard, Mahesh N. Jayakody, Farshad Nejadsattari, Ebrahim Karimi, Yingwen Zhang, Alicia Sit, Robert Fickler, Hugo Larocque, Eliahu Cohen |
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| Přispěvatelé: | Hasan, Zameer U., Hemmer, Philip R., Migdall, Alan L. |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Popis: | 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. Advanced Optical Techniques for Quantum Information, Sensing, and Metrology, February 1-6, 2020, San Francisco, United States Series: Proceedings of SPIE |
| Databáze: | OpenAIRE |
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