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arXiv · 2110.14488

Mode-selective single-photon addition to a multimode quantum field

Ganaël Roeland·Srinivasan Kaali·Victor Roman Rodriguez·Nicolas Treps·Valentina Parigi
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Abstract

Spectro-temporal modes of light can be exploited for the generation of high-dimensional Gaussian quantum states. Such states are at the basis of continuous variable quantum information protocols where they have to support mode-selective non-Gaussian operations. We develop a general framework for single-photon addition on multimode states of light via parametric down conversion processes. We identify the analytical conditions for single-mode and mode-selective photon addition. We show that spectral mode selectivity can be achieved in the Type-II collinear down conversion, while single-mode condition are retrieved for noncollinear Type-I and Type-II processes. Numerical results are shown for photon addition in parametric down conversion process at near-infrared and telecommunications wavelengths.

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Ganaël Roeland, Srinivasan Kaali, Victor Roman Rodriguez, Nicolas Treps, Valentina Parigi. 2021-10-27. Mode-selective single-photon addition to a multimode quantum field. https://doi.org/10.1088/1367-2630/ac5f85

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