Advanced Technologies and Materials

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Vol. 48 No. 2 (2023)
Original articles

On Photonic Implementation of Quantum Computers

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  • Svetomir Simonović
Svetomir Simonović
The Academy of Applied Technical Studies Belgrade, Katarine Ambrozić br.3, Belgrade, Serbia
DOI: https://doi.org/10.24867/ATM-2023-2-004

Published 2023-12-18

abstract views: 112 // Full text article (PDF): 113


Keywords

  • Linear optical elements,
  • Hilbert space,
  • Qubit,
  • Qudit

How to Cite

Simonović, S. (2023). On Photonic Implementation of Quantum Computers. Advanced Technologies and Materials, 48(2), 61–68. https://doi.org/10.24867/ATM-2023-2-004
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

The first section of the work investigates light modes as a means of implementing optical qubits and qudits. The modes considered are polarization mode, path mode, transverse spatial mode, frequency mode, temporal bin-mode and temporal mode. Subsequently, mathematical model of linear optical elements like beam splitters (BS) and phase shifters are deduced and their capability of representing any single qubit optical gate is exposed. Finally Knill, Laflamme and Milburn (KLM) method of using linear optical elements to promote nonlinear operations based on nonlinear (nondeterministic) sign-flip gate (NS) is explained, and designs of two qubits conditional sign flip gate (c-z1/16) and CNOT gate, both based on KLM method, are demonstrated. So, universal set of quantum gates based on linear optics is possible.

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