Transport of quantum states and separation of ions in a dual RF ion trap

Authors:
M. A. Rowej;A. Ben-Kish;B. Demarco;D. Leibfried;V. Meyer;J. Beall;J. Britton;J. Hughes;W. M. Itano;B. Jelenković;C. Langer;T. Rosenband;D. J. Wineland
Affiliations:
National Institute of Standards and Technology, Boulder, Colorado;Technion, Haifa, Isreal and National Institute of Standards and Technology, Boulder, Colorado;National Institute of Standards and Technology, Boulder, Colorado;National Institute of Standards and Technology, Boulder, Colorado;National Institute of Standards and Technology, Boulder, Colorado;National Institute of Standards and Technology, Boulder, Colorado;National Institute of Standards and Technology, Boulder, Colorado;National Institute of Standards and Technology, Boulder, Colorado;National Institute of Standards and Technology, Boulder, Colorado;National Institute of Standards and Technology, Boulder, Colorado;National Institute of Standards and Technology, Boulder, Colorado;National Institute of Standards and Technology, Boulder, Colorado;National Institute of Standards and Technology, Boulder, Colorado
Venue:
Quantum Information & Computation
Year:
2002

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Abstract

We have investigated ion dynamics associated with a dual linear ion trap where ions can be stored in and moved between two distinct locations. Such a trap is a building block for a system to engineer arbitrary quantum states of ion ensembles. Specifically, this trap is the unit cell in a strategy for scalable quantum computing using a series of interconnected ion traps. We have transferred an ion between trap locations 1.2 mm apart in 50 µs with near unit efficiency ( 106 consecutive transfers) and negligible motional heating, while maintaining internal-state coherence. In addition, we have separated two ions held in a common trap into two distinct traps.