A superconducting quantum memory with tens of milliseconds coherence time
Autor: | Milul, Ofir, Guttel, Barkay, Goldblatt, Uri, Hazanov, Sergey, Joshi, Lalit M., Chausovsky, Daniel, Kahn, Nitzan, Çiftyürek, Engin, Lafont, Fabien, Rosenblum, Serge |
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Jazyk: | angličtina |
Rok vydání: | 2023 |
Předmět: | |
Popis: | Storing quantum information for an extended period of time is essential for running quantum algorithms with low errors. Currently, superconducting quantum memories have coherence times of a few milliseconds, and surpassing this performance has remained an outstanding challenge. In this work, we report a qubit encoded in a novel superconducting cavity with a coherence time of 34 ms, an improvement of over an order of magnitude compared to previous demonstrations. We use this long-lived quantum memory to store a Schr\"odinger cat state with a record size of 1024 photons, indicating the cavity's potential for bosonic quantum error correction. Comment: 19 pages, 11 figures, including supplementary information |
Databáze: | OpenAIRE |
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