Non-Markovian qubit dynamics induced by Coulomb crystals

Massimo Borrelli*, Pinja Haikka, Gabriele De Chiara, Sabrina Maniscalco

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)
270 Downloads (Pure)


We investigate the backflow of information in a system with a second-order structural phase transition, namely, a quasi-one-dimensional Coulomb crystal. Using standard Ramsey interferometry which couples a target ion (the system) to the rest of the chain (a phononic environment), we study the non-Markovian character of the resulting open system dynamics. We study two different time scales and show that the backflow of information pinpoints both the phase transition and different dynamical features of the chain as it approaches criticality. We also establish an exact link between the backflow of information and the Ramsey fringe visibility.

Original languageEnglish
Article number010101
Pages (from-to)1-5
JournalPhysical Review A (Atomic, Molecular, and Optical Physics)
Issue number1
Publication statusPublished - 01 Jul 2013


  • IONS

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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