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Open AccessArticle

Analysis of Controlled Rabi Flopping in a Double Rephasing Photon Echo Scheme for Quantum Memories

by 1,2 and 1,*
1
Center for Photon Information Processing, and School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
2
Quantum Optics Lab., Department of Physics, COMSATS University, Islamabad 44000, Pakistan
*
Author to whom correspondence should be addressed.
Entropy 2020, 22(9), 1007; https://doi.org/10.3390/e22091007
Received: 19 August 2020 / Accepted: 7 September 2020 / Published: 9 September 2020
(This article belongs to the Special Issue Quantum Information and Quantum Optics)
A double rephasing scheme of a photon echo is analyzed for inversion-free photon echo-based quantum memories using controlled Rabi flopping, where the Rabi flopping is used for phase control of collective atom coherence. Unlike the rephasing-caused π-phase shift in a single rephasing scheme, the control Rabi flopping between the excited state and an auxiliary third state induces coherence inversion. Thus, the absorptive photon echo in a double rephasing scheme can be manipulated to be emissive. Here, we present a quantum coherence control of atom phases in a double rephasing photon echo scheme for emissive photon echoes for quantum memory applications. View Full-Text
Keywords: quantum optics; coherent transients; quantum memory; photon echoes quantum optics; coherent transients; quantum memory; photon echoes
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MDPI and ACS Style

Ullah, R.; Ham, B.S. Analysis of Controlled Rabi Flopping in a Double Rephasing Photon Echo Scheme for Quantum Memories. Entropy 2020, 22, 1007. https://doi.org/10.3390/e22091007

AMA Style

Ullah R, Ham BS. Analysis of Controlled Rabi Flopping in a Double Rephasing Photon Echo Scheme for Quantum Memories. Entropy. 2020; 22(9):1007. https://doi.org/10.3390/e22091007

Chicago/Turabian Style

Ullah, Rahmat; Ham, Byoung S. 2020. "Analysis of Controlled Rabi Flopping in a Double Rephasing Photon Echo Scheme for Quantum Memories" Entropy 22, no. 9: 1007. https://doi.org/10.3390/e22091007

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