Quantum phase estimation algorithm on a reconfigurable silicon photonic chip

Raffaele Santagati; Joshua W. Silverstone; Michael J. Strain; Marc Sorel; Shigehito Miki; Taro Yamashita; Mikio Fujiwara; Masahide Sasaki; Hirotaka Terai; Michael G. Tanner; Chandra M. Natarajan; Robert H. Hadfield; Jeremy L. O’Brien; Mark G. Thompson

2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference
(Optica Publishing Group, 2015),
paper JSV_4_1

Quantum phase estimation algorithm on a reconfigurable silicon photonic chip

Raffaele Santagati, Joshua W. Silverstone, Michael J. Strain, Marc Sorel, Shigehito Miki, Taro Yamashita, Mikio Fujiwara, Masahide Sasaki, Hirotaka Terai, Michael G. Tanner, Chandra M. Natarajan, Robert H. Hadfield, Jeremy L. O’Brien, and Mark G. Thompson

The European Conference on Lasers and Electro-Optics 2015

Munich Germany
21–25 June 2015
ISBN: 978-1-4673-7475-0

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Manipulation of Quantum Information on Chip (JSV_4)

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R. Santagati, J. W. Silverstone, M. J. Strain, M. Sorel, S. Miki, T. Yamashita, M. Fujiwara, M. Sasaki, H. Terai, M. G. Tanner, C. M. Natarajan, R. H. Hadfield, J. L. O’Brien, and M. G. Thompson, "Quantum phase estimation algorithm on a reconfigurable silicon photonic chip," in 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, (Optica Publishing Group, 2015), paper JSV_4_1.

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Abstract

The phase estimation algorithm (PEA), is the key to many quantum algorithms, allowing us to use a quantum computer to efficiently find the eigenvalue of a unitary matrix, U. The PEA can be made iterative [1], such that we can find the sequence of bits x_k which define the eigenvalue’s phase:

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