On-Demand Storage and Retrieval of Microwave Photons Using a Superconducting Multiresonator Quantum Memory

We realize on-demand storage and retrieval of weak coherent microwave photon pulses at the single-photon level. A superconducting multiresonator system which is composed of a set of frequency-tunable coplanar waveguide resonators is implemented as the quantum memory. By dynamically tuning the resona...

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Bibliographic Details
Published in:Physical review letters 2021-07, Vol.127 (1), p.1-010503, Article 010503
Main Authors: Bao, Zenghui, Wang, Zhiling, Wu, Yukai, Li, Yan, Ma, Cheng, Song, Yipu, Zhang, Hongyi, Duan, Luming
Format: Article
Language:English
Subjects:
Alliances
Chips (memory devices)
Circuits
Coplanar waveguides
Data processing
Phase coherence
Photons
Quantum phenomena
Qubits (quantum computing)
Resonant frequencies
Resonators
Retrieval
Superconductivity
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Summary:We realize on-demand storage and retrieval of weak coherent microwave photon pulses at the single-photon level. A superconducting multiresonator system which is composed of a set of frequency-tunable coplanar waveguide resonators is implemented as the quantum memory. By dynamically tuning the resonant frequencies of the resonators, we achieve tunable memory bandwidth from 10 to 55 MHz, with well preserved phase coherence. We further demonstrate on-demand storage and retrieval of a time-bin flying qubit. This result opens up a prospect to integrate our chip-based quantum memory with the state-of-the-art superconducting quantum circuit technology for quantum information processing.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.127.010503