Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Building Blocks for a Scalable Quantum Information Processor Based On Trapped Ions



Dietrich G. Leibfried, Murray D. Barrett, A Ben-kish, Joseph W. Britton, J Chiaverini, B. L. DeMarco, Wayne M. Itano, Branislav M. Jelenkovic, John D. Jost, Christopher Langer, D Lucas, V Meyer, Till P. Rosenband, M A. Rowe, T Schaetz, David J. Wineland


We describe the underlying concept and experimental demonstration of the basic building blocks of a scalable quantum information processor architecture using trapped ion-qubits. The trap structure is divided into many subregions. In each several ion-qubits can be trapped in complete isolation from all the other ion-qubits in the system. In a particular subregion, ion- qubits can either be stored as memory or subjected to individual rotations or multi-qubit gates. The ion-qubits are guided through the array by appropriately switching control electrode potentials. Excess energy that is gained through the motion of ion-qubits in the array or other heating mechanisms can be removed by sympathetic cooling of the ion-qubits with another ion species. The proposed architecture can be used in a highly parallel fashion, an important prerequisite for fault-tolerant quantum computation.
Proceedings Title
2003 ICOLS Conf.
Conference Dates
July 11-18, 2003
Conference Location
Conference Title
Proc. 2003 ICOLS Conf.


Leibfried, D. , Barrett, M. , Ben-kish, A. , Britton, J. , Chiaverini, J. , DeMarco, B. , Itano, W. , Jelenkovic, B. , Jost, J. , Langer, C. , Lucas, D. , Meyer, V. , Rosenband, T. , Rowe, M. , Schaetz, T. and Wineland, D. (2003), Building Blocks for a Scalable Quantum Information Processor Based On Trapped Ions, 2003 ICOLS Conf. , Cairns, -1, [online], (Accessed May 27, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created January 1, 2003, Updated February 17, 2017