Time-Spatial Mode Selective Quantum Frequency Converter

• URL: http://arxiv.org/abs/2105.14160v1
• Date: Sat, 29 May 2021 00:34:14 GMT
• Title: Time-Spatial Mode Selective Quantum Frequency Converter
• Authors: Santosh Kumar, He Zhang, Prajnesh Kumar, Malvika Garikapati, Yong Meng Sua, and Yu-Ping Huang
• Abstract summary: We experimentally demonstrate a mode-selective quantum frequency converter over a compound-temporal Hilbert space. We show that our method can achieve high-extinction for high-dimensional quantum state extinction by selectively upconverting the signal modes with modes and delayed modes.
• Score: 8.253398581187776
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We experimentally demonstrate a mode-selective quantum frequency converter over a compound spatio-temporal Hilbert space. We show that our method can achieve high-extinction for high-dimensional quantum state tomography by selectively upconverting the signal modes with a modulated and delayed pump. By preparing the pump in optimized modes through adaptive feedback control, selective frequency conversion is demonstrated with up to 30 dB extinction. The simultaneous operations over high-dimensional degrees of freedom in both spatial and temporal domains can serve as a viable resource for photon-efficient quantum communications and computation.

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