Time-Spatial Mode Selective Quantum Frequency Converter

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....

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Bibliographic Details
Published inarXiv.org
Main Authors Kumar, Santosh, Zhang, He, Kumar, Prajnesh, Garikapati, Malvika, Yong Meng Sua, Yu-Ping, Huang
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 29.05.2021
Subjects
Adaptive control
Extinction
Feedback control
Frequency converters
Hilbert space
Physics - Quantum Physics
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Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.2105.14160