Quantum superpositions of crystalline structures

Jens D. Baltrusch, Cecilia Cormick, Gabriele De Chiara, Tommaso Calarco, Giovanna Morigi

Research output: Contribution to journalArticleResearchpeer-review

29 Citations (Scopus)


A procedure is discussed for creating coherent superpositions of motional states of ion strings. The motional states are across the structural transition linear-zigzag, and their coherent superposition is achieved by means of spin-dependent forces, such that a coherent superposition of the electronic states of one ion evolves into an entangled state between the chain's internal and external degrees of freedom. It is shown that the creation of such an entangled state can be revealed by performing Ramsey interferometry with one ion of the chain. © 2011 American Physical Society.
Original languageEnglish
Article number063821
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number6
Publication statusPublished - 8 Dec 2011


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