Quantum spatial search in two-dimensional waveguide arrays

Autor:	Benedetti, C., Tamascelli, D., Paris, M. G. A., Crespi, A.
Rok vydání:	2021
Předmět:	Quantum Physics
Zdroj:	Phys. Rev. Applied 16, 054036 (2021)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevApplied.16.054036
Popis:	Continuous-time quantum walks (CTQW) have shown the capability to perform efficiently the spatial search of a marked site on many kinds of graphs. However, most of such graphs are hard to realize in an experimental setting. Here we study CTQW spatial search on a planar triangular lattice by means of both numerical simulations and experiments. The experiments are performed using three-dimensional waveguide arrays fabricated by femtosecond laser pulses, illuminated by coherent light. We show that the retrieval of the marked site by the quantum walker is accomplished with higher probability than the classical counterpart, in a convenient time window placed early in the evolution. Comment: 10 pages, version accepted by Phys. Rev. Appl
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2106.03867 Zobrazit plný text záznamu View this record from Arxiv