3 papers
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
Noise correlations behind superdiffusive quantum walks
Graça R. M. de Almeida, N. Amaral, A. R. C. Buarque +1
We study how discrete-time quantum walks behave under short-range correlated noise. By considering noise as a source of inhomogeneity of quantum gates, we introduce a primitive rel…
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…