Realizing a variable isotropic depolarizer

Abstract

We demonstrate an isotropic depolarizing channel with a controllable degree of depolarization. The depolarizer is composed of four birefringent crystals and half-wave plates. Quantum process tomography results of the depolarization effect on single photons agree well with the theoretical prediction. This depolarizer can be used to test quantum communication protocols with photons.

4 pages, 4 figures

References in corpus (2)

• Experimental Realization of Optimal Noise Estimation for a General Pauli Channel
• Quantum process tomography of single photon quantum channels with controllable decoherence

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