Optical quantum memory for noble-gas spins based on spin-exchange collisions

• URL: http://arxiv.org/abs/2007.10177v2
• Date: Mon, 14 Oct 2024 01:58:14 GMT
• Title: Optical quantum memory for noble-gas spins based on spin-exchange collisions
• Authors: Or Katz, Roy Shaham, Eran Reches, Alexey V. Gorshkov, Ofer Firstenberg,
• Abstract summary: We outline and characterize schemes to map the state of photons onto long-lived but optically-inaccessible collective states of noble-gas spins. The mapping employs coherent spin-exchange interaction arising from random collisions with alkali vapor. We propose efficient storage strategies in two operating regimes and analyze their performance for several proposed experimental configurations.
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• Abstract: Optical quantum memories, which store and preserve the quantum state of photons, rely on a coherent mapping of the photonic state onto matter states that are optically accessible. Here we outline and characterize schemes to map the state of photons onto long-lived but optically-inaccessible collective states of noble-gas spins. The mapping employs coherent spin-exchange interaction arising from random collisions with alkali vapor. We propose efficient storage strategies in two operating regimes and analyze their performance for several proposed experimental configurations.

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