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Optik

A novel frequency encoded all optical CNOT gate exploiting difference frequency generation and implementation of fast binary adders using frequency encoding and nonlinear dielectric films

Kousik Mukherjee, Parimal Ghosh

Published Apr 1, 2010• 17 citations
Publisher
DOI
10.1016/j.ijleo.2009.11.006

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Abstract Optics has been successfully used for data processing. The basic building blocks of quantum computers are the quantum gates. Here, a quantum CNOT gate is proposed. To implement the gate advantages of polarization-based encoding technique and optical Kerr material-based switching are utilized. CS2 can show this type of switching feature. An Nd-YAG laser source of 1.064 μm wavelength is used to implement the scheme. Intensity of the laser pulse should be of the order of 1018 W/m2 to excite the 2nd order nonlinearity of the isotropic nonlinear material.