Phys. Rev. B 69, 161303(R) (2004) - Experimental realization of the one qubit Deutsch-Jozsa algorithm in a quantum dot

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Experimental realization of the one qubit Deutsch-Jozsa algorithm in a quantum dot

P. Bianucci, A. Muller, C. K. Shih, Q. Q. Wang, Q. K. Xue, and C. Piermarocchi

Phys. Rev. B 69, 161303(R) – Published 12 April 2004

Abstract

We perform quantum interference experiments on a single self-assembled semiconductor quantum dot. The presence or absence of a single exciton in the dot provides a qubit that we control with femtosecond time resolution. We combine a set of quantum operations to realize the single-qubit Deutsch-Jozsa algorithm. The results show the feasibility of single-qubit quantum logic in a semiconductor quantum dot using ultrafast optical control.

Received 13 January 2004

DOI:https://doi.org/10.1103/PhysRevB.69.161303

©2004 American Physical Society

Authors & Affiliations

P. Bianucci, A. Muller, and C. K. Shih^*

Physics Department, The University of Texas at Austin, Austin, Texas 78712, USA

Q. Q. Wang^† and Q. K. Xue

International Center for Quantum Structures, Institute of Physics, The Chinese Academy of Sciences, Beijing 100080, People’s Republic of China

C. Piermarocchi

Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824-2320, USA

^*Electronic address: shih@physics.utexas.edu
^†Also at Department of Physics, Wuhan University, Wuhan 430072, P. R. China.

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Vol. 69, Iss. 16 — 15 April 2004

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