Ramsey interferometry with a spin embedded in a Coulomb chain

Gabriele De Chiara, T. Calarco, S. Fishman, G. Morigi

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

We show that the statistical properties of a Coulomb crystal can be measured by means of a standard interferometric procedure performed on the spin of one ion in the chain. The ion spin, constituted by two internal levels of the ion, couples to the crystal modes via spatial displacement induced by photon absorption. The loss of contrast in the interferometric signal allows one to measure the autocorrelation function of the crystal observables. Close to the critical point, where the chain undergoes a second-order phase transition to a zigzag structure, the signal gives the behavior of the correlation function at the critical point.
Original languageEnglish
Article number043414
Pages (from-to)043414
Number of pages1
JournalPhysical Review A
Volume78
Issue number4
DOIs
Publication statusPublished - 20 Oct 2008

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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