A Noise-Robust Pulse for Excitation Transfer in a Multi-Mode Quantum Memory  

作　　者：Bo Gong Tao Tu Ao-Lin Guo Le-Tian Zhu Chuan-Feng Li 龚波;涂涛;郭奥林;朱乐天;李传锋(Key Laboratory of Quantum Information,University of Science and Technology of China,Chinese Academy of Sciences,Hefei 230026,China)

机构地区：[1]Key Laboratory of Quantum Information,University of Science and Technology of China,Chinese Academy of Sciences,Hefei 230026,China

出　　处：《Chinese Physics Letters》2021年第4期51-55,共5页中国物理快报（英文版）

基　　金：the National Natural Science Foundation of China(Grant No.11974336);the National Key Research and Development Program of China(Grant No.2017YFA0304100)。

摘　　要：Multi-mode quantum memory is a basic element required for long-distance quantum communication,as well as scalable quantum computation.For on-demand readout and long storage times,control pulses are crucial in order to transfer atomic excitations back and forth into spin excitations.Here,we introduce noise-robust composite pulse sequences for high-fidelity excitation transfer in multi-mode quantum memory.These pulses are robust to the deviations in amplitude and the detuning parameters of realistic conditions.We show the efficiency of these composite pulses with a typical rare-earth ion-doped system.This approach could be applied to a variety of quantum memory schemes.

关 键 词：computation. conditions. QUANTUM 

分 类 号：O413[理学—理论物理] TP333[理学—物理]