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

  • Author(s): Ranjan, V;
  • O'Sullivan, J;
  • Albertinale, E;
  • Albanese, B;
  • Chanelière, T;
  • Schenkel, T;
  • Vion, D;
  • Esteve, D;
  • Flurin, E;
  • Morton, JJL;
  • Bertet, P
  • et al.
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.

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