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3 June 2011 Implementing an optical CNOT using spatial parity qubits
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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.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
K. Kagalwala, G. Di Giuseppe, A. F. Abouraddy, and B. E. A. Saleh "Implementing an optical CNOT using spatial parity qubits", Proc. SPIE 8057, Quantum Information and Computation IX, 80570L (3 June 2011);


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