Information compression at the turbulent-phase transition in cold atom gases - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Phys.Rev.Res. Année : 2023

Information compression at the turbulent-phase transition in cold atom gases

J.L. Figueiredo
  • Fonction : Auteur
J.D. Rodrigues
  • Fonction : Auteur
J.A. Rodrigues
  • Fonction : Auteur
H. Terças
  • Fonction : Auteur
J.T. Mendonça
  • Fonction : Auteur

Résumé

The statistical properties of physical systems in thermal equilibrium are blatantly different from their far-from-equilibrium counterparts. In the latter, fluctuations often dominate the dynamics and might cluster in ordered patterns in the form of dissipative coherent structures. Here, we study the transition of a cold atomic cloud, driven close to a sharp electronic resonance, from a stable to a turbulent phase. From the atomic density distribution -- measured using a spatially-resolved pump-probe technique -- we have computed the Shannon entropy on two different basis sets. Information compression, corresponding to a minimum in the Shannon entropy, has been observed at criticality, where the system fluctuations organize into high-order (low-entropy) patterns. Being independent of the representation used, this feature is a property shared by a vast class of physical systems undergoing phase transitions.

Dates et versions

hal-03865756 , version 1 (22-11-2022)

Identifiants

Citer

R. Giampaoli, J.L. Figueiredo, J.D. Rodrigues, J.A. Rodrigues, H. Terças, et al.. Information compression at the turbulent-phase transition in cold atom gases. Phys.Rev.Res., 2023, 5 (4), pp.043303. ⟨10.1103/PhysRevResearch.5.043303⟩. ⟨hal-03865756⟩
9 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More