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Proceedings Paper

Implementing an optical CNOT using spatial parity qubits
Author(s): K. Kagalwala; G. Di Giuseppe; A. F. Abouraddy; B. E. A. Saleh
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Paper Abstract

We describe an optical implementation of a CNOT gate in which the control qubit is the polarization of a single photon and the target qubit is the spatial parity of the same photon. The gate is implemented with a polarizationsensitive spatial light modulator. We characterize the operation of the gate using quantum process tomography and the spatial parity is analyzed with a modified Mach-Zehnder interferometer. We also demonstrate the CNOT-gate operation with arbitrary rotation of the target qubit and discuss the possibility of implementing multi-qubit CNOT gates using the same approach.

Paper Details

Date Published: 3 June 2011
PDF: 7 pages
Proc. SPIE 8057, Quantum Information and Computation IX, 80570L (3 June 2011); doi: 10.1117/12.883995
Show Author Affiliations
K. Kagalwala, CREOL, The College of Optics & Photonics, Univ. of Central Florida (United States)
G. Di Giuseppe, CREOL, The College of Optics & Photonics, Univ. of Central Florida (United States)
Univ. degli Studi di Camerino (Italy)
A. F. Abouraddy, CREOL, The College of Optics & Photonics, Univ. of Central Florida (United States)
B. E. A. Saleh, CREOL, The College of Optics & Photonics, Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 8057:
Quantum Information and Computation IX
Eric Donkor; Andrew R. Pirich; Howard E. Brandt, Editor(s)

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