Demonstration of Conditional Quantum Phase Shift Between Ions in a Solid

J. J. Longdell, M. J. Sellars, and N. B. Manson
Phys. Rev. Lett. 93, 130503 – Published 23 September 2004

Abstract

Because of their long coherence times, dopant ions have been considered promising candidates for scalable solid state quantum computing. Here we demonstrate a conditional phase shift between two qubits based on an optical transition of europium ions. The demonstration uses ensembles that have been selected from a randomly doped sample using spectral hole burning techniques. The electron dipole-dipole interaction between the ions that usually causes instantaneous spectral diffusion is used to generate the conditional phase shift.

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  • Received 25 April 2004

DOI:https://doi.org/10.1103/PhysRevLett.93.130503

©2004 American Physical Society

Authors & Affiliations

J. J. Longdell*, M. J. Sellars, and N. B. Manson

  • Laser Physics Center, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia.

  • *Electronic address: jevon.longdell@anu.edu.au

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Issue

Vol. 93, Iss. 13 — 24 September 2004

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