Multimode Storage of Quantum Microwave Fields in Electron Spins over 100 ms

2020/05/19 by V. Ranjan, James O’Sullivan, J. O'Sullivan +15 · 29 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Atomic physics #Bismuth #Coherence (philosophical gambling strategy) #Coherence time #Condensed matter physics #Electron #Materials science #Microwave #Multi-mode optical fiber #Optics #Physics #Quantum #Quantum and electron transport phenomena #Quantum mechanics #Quantum optics and atomic interactions #Spins #cond-mat.mes-hall #quant-ph

paper · pdf · doi:10.1103/physrevlett.125.210505

published in Physical Review Letters 125(21), 210505 (American Physical Society) · 11 pages including Supplementary

arxiv created 2020/05/19 · openalex publication_date 2020/11/20 · arxiv updated 2020/11/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We report long coherence times (up to 300 ms) for near-surface bismuth donor electron spins in silicon coupled to a superconducting microresonator, biased at a clock transition. This enables us to demonstrate the partial absorption of a train of weak microwave fields in the spin ensemble, their storage for 100 ms, and their retrieval, using a Hahn-echo-like protocol. Phase coherence and quantum statistics are preserved in the storage.

Citations

• Revival of silenced echo and quantum memory for light
• Why the two-pulse photon echo is not a good quantum memory protocol
• Hybridizing ferromagnetic magnons and microwave photons in the quantum limit
• Towards a spin-ensemble quantum memory for superconducting qubits
• Radiative cooling of a spin ensemble
• Random access quantum information processors using multimode circuit quantum electrodynamics

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