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Article overview
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Limits of single-photon storage in a single $Λ$-type atom | Zhi-Lei Zhang
; Li-Ping Yang
; | Date: |
4 Jan 2023 | Abstract: | We theoretically investigate the limits of single-photon storage in a single
$Lambda$-type atom, specifically the trade-off between storage efficiency and
storage speed. A control field can be exploited to accelerate the storage
process without degrading efficiency too much. We show that the storage speed
is ultimately limited by the total decay rate of the involved excited state.
For a single-photon pulse propagating in a regular one-dimensional waveguide,
the storage efficiency has an upper limit of $50 \%$. Perfect single-photon
storage can be achieved by using a chiral waveguide or the Sagnac
interferometry. By comparing the storage efficiencies of Fock-state and
coherent-state pulses, we reveal the influence of quantum statistics of light
on photon storage at the single-photon level. Our results could pave a new way
for the optimization of single-photon storage. | Source: | arXiv, 2301.01559 | Services: | Forum | Review | PDF | Favorites |
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