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 Quantum Storage and Retrieval of Light by Sweeping the Atomic Frequency


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We propose a quantum memory protocol based on dynamically changing the resonance frequency of an ensemble of two-level atoms. By sweeping the atomic frequency in an adiabatic fashion, photons are reversibly transferred into atomic coherences. We present a polaritonic description for this type of storage, which shares some similarities with Electromagnetically Induced Transparency EIT based quantum memories. On the other hand the proposed memory is also linked to the Gradient Echo Memory GEM due to the effective spatial gradient that pulses experience in the medium. We discuss a possible implementation of the protocol in hollow-core photonic crystal fibers.



Author: Hamidreza Kaviani; Mohammad Khazali; Roohollah Ghobadi; Ehsan Zahedinejad; Khabat Heshami; Christoph Simon

Source: https://archive.org/



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