Spatiotemporal mode-selective quantum frequency converter

被引：8

作者：

Kumar, Santosh ^{[1
]}

Zhang, He

Kumar, Prajnesh

Garikapati, Malvika

Sua, Yong Meng

Huang, Yu-Ping ^{[1
]}

机构：

[1] Stevens Inst Technol, Dept Phys, Hoboken, NJ 07030 USA

来源：

PHYSICAL REVIEW A | 2021年 / 104卷 / 02期

基金：

美国国家科学基金会;

关键词：

ORBITAL ANGULAR-MOMENTUM; SPATIAL MODES; CONVERSION; CRYPTOGRAPHY;

D O I：

10.1103/PhysRevA.104.023506

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We experimentally demonstrate a mode-selective quantum frequency converter over a compound spatiotemporal 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.

引用

页数：9

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