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- W4307204788 abstract "The dynamics of nonlinear flip-flop quantum walk with amplitude-dependent phase shifts with pertubing potential barrier is investigated. Through the adjustment between uniform local perturbations and a Kerrlike nonlinearity of the medium we find a rich set of dynamic profiles. We will show the existence of different Hadamard quantum walking regimes, including those with mobile soliton-like structures or self-trapped states. The latter is predominant for perturbations with amplitudes that tend to $varphirightarrow pi/2$. In this system, the qubit shows an unusual behavior as we increase the amplitudes of the potential barriers, and displays a monotonic decrease in the self-trapping $varphi_c$ with respect to the nonlinear parameter. A chaotic-like regime becomes predominant for intermediate nonlinearity values. Furthermore, we show that by changing the quantum coins ($theta$) a non-trivial dynamic arises, where coins close to Pauli-X drives the system to a regime with predominant soliton-like structures, while the chaotic behavior are restricted to a narrow region in the $chi$-$varphi$ plane. We believe that is possible to implement and observe the proprieties of this model in a integrated photonic system." @default.
- W4307204788 created "2022-10-30" @default.
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- W4307204788 date "2022-10-20" @default.
- W4307204788 modified "2023-09-30" @default.
- W4307204788 title "Nonlinear flip-flop quantum walks through potential barriers" @default.
- W4307204788 doi "https://doi.org/10.48550/arxiv.2210.11661" @default.
- W4307204788 hasPublicationYear "2022" @default.
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