A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Noisy quantum walks of two indistinguishable interacting particles
Tekijät: Siloi I, Benedetti C, Piccinini E, Piilo J, Maniscalco S, Paris MGA, Bordone P
Kustantaja: AMER PHYSICAL SOC
Julkaisuvuosi: 2017
Journal: Physical Review A
Tietokannassa oleva lehden nimi: PHYSICAL REVIEW A
Lehden akronyymi: PHYS REV A
Artikkelin numero: ARTN 022106
Vuosikerta: 95
Numero: 2
Sivujen määrä: 8
ISSN: 2469-9926
eISSN: 2469-9934
DOI: https://doi.org/10.1103/PhysRevA.95.022106
Verkko-osoite: https://journals.aps.org/pra/pdf/10.1103/PhysRevA.95.022106
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/19249484
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.
Ladattava julkaisu This is an electronic reprint of the original article. |  |
