Polarization preserving ultra fast optical shutter for quantum information processing

Abstract

We present the realization of a ultra fast shutter for optical fields, which allows to preserve a generic polarization state, based on a self-stabilized interferometer. It exhibits high (or low) transmittivity when turned on (or inactive), while the fidelity of the polarization state is high. The shutter is realized through two beam displacing prisms and a longitudinal Pockels cell. This can represent a useful tool for controlling light-atom interfaces in quantum information processing.

4 pages, 6 figures

References in corpus (4)

• Quantum Cryptography
• High-speed linear optics quantum computing using active feed-forward
• Active one-way quantum computation with 2-photon 4-qubit cluster states
• Demonstration of Feed-Forward Control for Linear Optics Quantum Computation

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• Coherent scattering of a Multiphoton Quantum Superposition by a Mirror-BEC
• Measurement-induced quantum operations on multiphoton states
• Entanglement and Quantum Superposition of a Macroscopic - Macroscopic system