{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T03:13:49Z","timestamp":1760238829273,"version":"build-2065373602"},"reference-count":32,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2020,9,9]],"date-time":"2020-09-09T00:00:00Z","timestamp":1599609600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100010839","name":"GIST","doi-asserted-by":"publisher","award":["GRI 2020"],"award-info":[{"award-number":["GRI 2020"]}],"id":[{"id":"10.13039\/501100010839","id-type":"DOI","asserted-by":"publisher"}]},{"name":"MIST\/IITP","award":["1711028311"],"award-info":[{"award-number":["1711028311"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"<jats:p>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 \u03c0-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.<\/jats:p>","DOI":"10.3390\/e22091007","type":"journal-article","created":{"date-parts":[[2020,9,9]],"date-time":"2020-09-09T09:01:09Z","timestamp":1599642069000},"page":"1007","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Analysis of Controlled Rabi Flopping in a Double Rephasing Photon Echo Scheme for Quantum Memories"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1416-6138","authenticated-orcid":false,"given":"Rahmat","family":"Ullah","sequence":"first","affiliation":[{"name":"Center for Photon Information Processing, and School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju 61005, Korea"},{"name":"Quantum Optics Lab., Department of Physics, COMSATS University, Islamabad 44000, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3609-8508","authenticated-orcid":false,"given":"Byoung S.","family":"Ham","sequence":"additional","affiliation":[{"name":"Center for Photon Information Processing, and School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju 61005, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,9,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"173601","DOI":"10.1103\/PhysRevLett.87.173601","article-title":"Complete reconstruction of the quantum state of a single-photon wave packet absorbed by a Doppler-broadened transition","volume":"87","author":"Moiseev","year":"2001","journal-title":"Phys. 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