Quantum Storage and Retrieval of Light by Sweeping the Atomic Frequency
Date
2012-12-17
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Abstract
We propose and analyze 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 lots of similarities with Electromagnetically Induced Transparency (EIT) based quantum memories. On the other hand this memory is linked to the Gradient Echo Memory(GEM) quantum memory in the co-moving frame due to the effective spatial gradient that pulses experience in the medium. As a result the proposed protocol forms a bridge between two well-known protocols for quantum memory, which is conceptually a matter of interest in the field of quantum memories. We also present a numerical analysis of this memory protocol and discuss various conditions that have to be fulfilled for desirable memory performance.
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Physics--Atomic
Citation
Kaviani, H. (2012). Quantum Storage and Retrieval of Light by Sweeping the Atomic Frequency (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/27513