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arXiv · 2105.12462

Universal compressive tomography in the time-frequency domain

J. Gil-Lopez·Y. S. Teo·S. De·B. Brecht·H. Jeong·C. Silberhorn·L. L. Sanchez-Soto
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Abstract

We implement a compressive quantum state tomography capable of reconstructing any arbitrary low-rank spectral-temporal optical signal with extremely few measurement settings and without any \emph{ad hoc} assumptions about the initially unknown signal. This is carried out with a quantum pulse gate, a device that flexibly implements projections onto arbitrary user-specified optical modes. We present conclusive experimental results for both temporal pulsed modes and frequency bins, which showcase the versatility of our randomized compressive method and thereby introduce a universal optical reconstruction framework to these platforms.

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J. Gil-Lopez, Y. S. Teo, S. De, B. Brecht, H. Jeong, C. Silberhorn, L. L. Sanchez-Soto. 2021-05-26. Universal compressive tomography in the time-frequency domain. https://arxiv.org/abs/2105.12462

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