Optical Review

, Volume 14, Issue 5, pp 260–265 | Cite as

Photonic Implementation of Quantum Computation Algorithm Based on Spatial Coding

  • Naoya Tate
  • Yusuke Ogura
  • Jun Tanida
Regular Papers


Several implementation methods of quantum computation algorithm by conventional computer have been explored for large-scale emulation. Due to the lack of quantum effects, these methods generally require exponential growth of the size of the hardware with increase of the number of qubits. In this paper, the spatial coding, which is an effective digital optical computing technique, is studied as an efficient implementation method of quantum computation algorithms. In the proposed scheme, quantum information is represented by the intensity and the phase of elemental cells. We confirmed correct operation of the quantum teleportation algorithm by computer simulation. We also demonstrated a photonic implementation of some of the quantum gates experimentally.

Key words

optical computing information processing quantum computing parallel processing spatial coding 


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Copyright information

© The Optical Society of Japan 2007

Authors and Affiliations

  • Naoya Tate
    • 1
  • Yusuke Ogura
    • 1
  • Jun Tanida
    • 1
  1. 1.Department of Information and Physical SciencesGraduate School of Information Science and Technology, Osaka UniversitySuitaJapan

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