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Compact Toffoli gate using weighted graph states

M. S. Tame, Ş. K. Özdemir, M. Koashi, N. Imoto, and M. S. Kim
Phys. Rev. A 79, 020302(R) – Published 4 February 2009

Abstract

We introduce three compact graph states that can be used to perform a measurement-based Toffoli gate. Given a weighted graph of six, seven, or eight qubits, we show that success probabilities of 14, 12, and 1, respectively, can be achieved. Our study puts a measurement-based version of this important quantum logic gate within the reach of current experiments. As the graphs are setup independent, they could be realized in a variety of systems, including linear optics and ion traps.

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  • Received 21 October 2008

DOI:https://doi.org/10.1103/PhysRevA.79.020302

©2009 American Physical Society

Authors & Affiliations

M. S. Tame1,2, Ş. K. Özdemir2,3,4, M. Koashi2,4, N. Imoto2,4, and M. S. Kim1

  • 1School of Mathematics and Physics, The Queen’s University, Belfast, BT7 1NN, United Kingdom
  • 2Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
  • 3Departmentof Electrical and Systems Engineering, Washington University, St. Louis, Missouri 63130, USA
  • 4CREST Research Team for Photonic Quantum Information, Saitama 331-0012, Japan

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Issue

Vol. 79, Iss. 2 — February 2009

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