Quantum superpositions of crystalline structures

Details Quantum superpositions of crystalline structures Quantum superpositions of crystalline structures

2011-09-30

arxiv.org/abs/1109.6906v1

Phys. Rev. A 84, 063821 (2011)

Physics

Quantum Physics

10 pages, 9 figures

Scientific paper

10.1103/PhysRevA.84.063821

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.

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