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1 August 2021 Single-shot integrated multi-photon split state tomography
Jihua Zhang, Andrey A. Sukhorukov
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Proceedings Volume 11806, Quantum Nanophotonic Materials, Devices, and Systems 2021; 1180606 (2021) https://doi.org/10.1117/12.2594473
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States
Abstract
Multi-photon split states, where each photon is in a different input mode, represent an essential resource for various quantum applications. Accordingly, characterisation of such states is important from the fundamental and practical perspectives. We propose a segmented coupled waveguide array as a new form of compact low-loss quantum circuit and apply it for the scalable multi-photon split state tomography with optimized performance and no need of reconfigurability. We develop an optimization algorithm to design the array with minimally necessary number of waveguides and smallest sensitivity to noise in the tomography. Such a novel platform can enable fast, scalable, and fully integrated quantum systems.
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Jihua Zhang and Andrey A. Sukhorukov "Single-shot integrated multi-photon split state tomography", Proc. SPIE 11806, Quantum Nanophotonic Materials, Devices, and Systems 2021, 1180606 (1 August 2021); https://doi.org/10.1117/12.2594473
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KEYWORDS
Tomography
Waveguides
Cryogenics
Integrated photonics
Nanowires
Optical circuits
Photonics
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