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Quantum 2.0 Conference and Exhibition

Suppressing Polarization Mode Dispersion with the Quantum Zeno Effect

I. C. Nodurft, Alejandro Rodriguez Perez, Naveed Naimipour, Harry C. Shaw

Published Jan 1, 2024• 0 citations
Publisher

Abstract

We show theoretically that a quantum Zeno effect can protect circularly polarized photons from polarization mode dispersion. This is accomplished by introducing absorbing material resonant with the polarization mode opposite that of the passing photon.
DOI
10.1364/quantum.2024.qth3a.29

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Polarization mode dispersion can introduce quantum decoherence in polarization encoded information, limiting the range of quantum communications protocols. Therefore, strategies to nullify the effect would reduce quantum decoherence and potentially increase the operational range of such technology. We constructed a quantum model of polarization mode dispersion alongside a two-level absorbing material. The two-level material serves to destructively measure one of two orthogonal polarization modes, thus projecting the polarization onto the other state. The theoretical results are supported by a numerical simulation in Mathematica Documentation where we compare the evolution of the polarization state with and without the absorbing material. We find that this strategy is effective in suppressing the effects of polarization mode dispersion, and that this method produces a global phase shift related to the waveguide's birefringent properties.
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