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quant-ph2026
Nonlinearity-Inhomogeneity Competition in Discrete-Time Quantum Walks
N. Amaral, A. R. C. Buarque, W. S. Dias
We investigate the interplay between nonlinearity and inhomogeneities in discrete-time quantum walks on one-dimensional lattices. Nonlinear effects are introduced through a Kerr-li…
quant-ph2025
Boomerang quantum walks
A. R. C. Buarque, W. S. Dias, Ernesto P. Raposo
In this study, we investigate the emergence of the quantum boomerang effect in discrete-time quantum walks (DTQWs) subjected to random phase disorder. Our analysis shows that this…
quant-ph2019
Aperiodic space-inhomogeneous quantum walks: localization properties, energy spectra and enhancement of entanglement
A. R. C. Buarque, W. S. Dias
We study the localization properties, energy spectra and coin-position entanglement of the aperiodic discrete-time quantum walks. The aperiodicity is described by spatially depende…