Relatore
Davide Rossini
(University of Pisa / INFN)
Descrizione
We study the collective dynamics of a clean Floquet system of cold atoms, numerically simulating two distinct realistic set-ups based on a regular chain of interacting Rydberg atoms driven by laser fields. In both cases, the population evolution and its Fourier spectrum display clear signatures of a discrete time crystal (DTC), exhibiting the appearance of a robust subharmonic oscillation which persists on a time scale increasing with the chain size, within a certain range of control parameters. We also characterize how the DTC stability is limited by dissipative processes, which are typically present in the system.
Autori principali
Sig.
Chu-Hui Fan
(School of Physics, Northeast Normal University, Changchun 130024, China)
Davide Rossini
(University of Pisa / INFN)
Sig.ra
Han-Xiao Zhang
(School of Physics, Northeast Normal University, Changchun 130024, China)
Jin-Hui Wu
(School of Physics, Northeast Normal University, Changchun 130024, China)
Prof.
Maurizio Artoni
(Brescia University, 25133 Brescia, Italy)
Prof.
Giuseppe La Rocca
(Scuola Normale Superiore, 56126 Pisa, Italy)
