Data di Pubblicazione:
2017
Citazione:
Noisy quantum walks of two indistinguishable interacting particles / I. Siloi, C. Benedetti, E. Piccinini, J. Piilo, S. Maniscalco, M.G.A. Paris, P. Bordone. - In: PHYSICAL REVIEW A. - ISSN 2469-9926. - 95(2017 Feb 06). [10.1103/PhysRevA.95.022106]
Abstract:
We investigate the dynamics of continuous-time two-particle quantum walks on a one-dimensional noisy lattice. Depending on the initial condition, we show how the interplay between particle indistinguishability and interaction determines distinct propagation regimes. A realistic model for the environment is considered by introducing non-Gaussian noise as time-dependent fluctuations of the tunneling amplitudes between adjacent sites. We observe that the combined effect of particle interaction and fast noise (weak coupling with the environment) provides a faster propagation compared to the noiseless case. This effect can be understood in terms of the band structure of the Hubbard model, and a detailed analysis as a function of both noise and system parameters is presented.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
quantum walks; classical noise; indistinguishable particles
Elenco autori:
I. Siloi, C. Benedetti, E. Piccinini, J. Piilo, S. Maniscalco, M.G.A. Paris, P. Bordone
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