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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 10 — Oct. 1, 2013
  • pp: 2765–2773

Quantum Fourier transform of polarization photons mediated by weak cross-Kerr nonlinearity

Li Dong, Xiao-Ming Xiu, Hong-Zhi Shen, Ya-Jun Gao, and X. X. Yi  »View Author Affiliations


JOSA B, Vol. 30, Issue 10, pp. 2765-2773 (2013)
http://dx.doi.org/10.1364/JOSAB.30.002765


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Abstract

We present a scheme of two-photon quantum Fourier transform at first, where the controlled π/2 phase gate and the Hadamard gates are applied. The indirect interaction between two photons can be realized through a coupling bus provided by a coherent state in Kerr media. Employing photon-number measurements and the corresponding classical feed-forward techniques, the task of low-error quantum Fourier transform can be fulfilled. With revision and modulation on the optical elements, controlled π/2n (n=2,3,) phase gates are constructed, and the multiphoton quantum Fourier transform can be achieved by integrating these controlled phase gates and Hadamard gates.

© 2013 Optical Society of America

OCIS Codes
(270.4180) Quantum optics : Multiphoton processes
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

History
Original Manuscript: May 6, 2013
Revised Manuscript: July 1, 2013
Manuscript Accepted: July 22, 2013
Published: September 30, 2013

Citation
Li Dong, Xiao-Ming Xiu, Hong-Zhi Shen, Ya-Jun Gao, and X. X. Yi, "Quantum Fourier transform of polarization photons mediated by weak cross-Kerr nonlinearity," J. Opt. Soc. Am. B 30, 2765-2773 (2013)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-30-10-2765

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