A Noise-Robust Pulse for Excitation Transfer in a Multi-Mode Quantum Memory
Bo Gong , Tao Tu* , Ao-Lin Guo , Le-Tian Zhu , and Chuan-Feng Li*
Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230026, China
Abstract :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.
收稿日期: 2020-12-16
出版日期: 2021-04-06
:
03.67.Lx
(Quantum computation architectures and implementations)
42.50.Dv
(Quantum state engineering and measurements)
42.50.Pq
(Cavity quantum electrodynamics; micromasers)
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