Robust control of quantized motional states of a chain of trapped ions by collective adiabatic passage

Abstract

A simple technique for robust generation of vibrational Fock states in a chain of trapped ions is proposed. The method is fast and easy to implement, since only a single chirped laser pulse, simultaneously addressing all of the ions, is required. Furthermore, because the approach uses collective adiabatic passage, significant fluctuations in the intensity or frequency of the laser pulse can be tolerated, and the technique performs well even on the border of the Lamb-Dicke regime. We also demonstrate how this technique may be extended in order to create non-classical superposition states of the ions' collective motion and Greenberger-Horne-Zeilinger states of their internal states. Because only a single laser pulse is required, heating effects arising under realistic experimental conditions are negligibly small.

9 pages, 7 figures. Discussion of performance outside Lamb-Dicke regime added. Some refs added

References in corpus (4)

• Extension of the Morris-Shore transformation to multilevel ladders
• Robust creation of arbitrary-sized Dicke states using a single laser pulse
• Decoherence-free preparation of Dicke states of trapped ions by collective stimulated Raman adiabatic passage
• Selective Control of the Symmetric Dicke Subspace in Trapped Ions

Cited by in corpus (2)

• Fast driving between arbitrary states of a quantum particle by trap deformation
• Adiabatic Sensing Technique for Optimal Temperature Estimation using Trapped Ions