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Deterministic Photon Storage and Readout in a Semimagnetic Quantum Dot–Cavity System Doped with a Single Mn Ion

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00006724
URN to cite this document: urn:nbn:de:bvb:703-epub-6724-3

Title data

Cosacchi, Michael ; Seidelmann, Tim ; Mielnik-Pyszczorski, Adam ; Neumann, Miriam ; Bracht, Thomas K. ; Cygorek, Moritz ; Vagov, Alexei ; Reiter, Doris E. ; Axt, Vollrath Martin:
Deterministic Photon Storage and Readout in a Semimagnetic Quantum Dot–Cavity System Doped with a Single Mn Ion.
In: Advanced Quantum Technologies. Vol. 5 (2022) Issue 4 . - No. 2100131.
ISSN 2511-9044
DOI der Verlagsversion: https://doi.org/10.1002/qute.202100131

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Name: Adv Quantum Tech - 2022 - Cosacchi - Deterministic Photon Storage and Readout in a Semimagnetic Quantum Dot Cavity System.pdf
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Project information

Project financing: Deutsche Forschungsgemeinschaft
Studienstiftung des deutschen Volkes
Open access funding enabled and organized by Projekt DEAL

Abstract

Light trapping is a crucial mechanism for synchronization in optical communication. Especially on the level of single photons, control of the exact emission time is desirable. In this paper, a single-photon buffering device composed of a quantum dot doped with a single Mn atom in a cavity is theoretically proposed. A method to detain a single cavity photon as an excitation of the dot is presented. The storage scheme is based on bright to dark exciton conversion performed with an off-resonant external optical field and mediated via a spin-flip with the magnetic ion. The induced Stark shift brings both exciton states to resonance and results in an excitation transfer to the optically inactive one. The stored photon can be read out on demand in the same manner by repopulating the bright state, which has a short lifetime. The results indicate the possibility to suspend a photon for almost two orders of magnitude longer than the lifetime of the bright exciton.

Further data

Item Type: Article in a journal
Keywords: single photons; storage; quantum emitters; optical cavities; quantum optics
Subject classification: condensed matter physics (theoretical)
DDC Subjects: 500 Science > 530 Physics
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III > Chair Theoretical Physics III - Univ.-Prof. Dr. Martin Axt
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-6724-3
Date Deposited: 17 Oct 2022 09:00
Last Modified: 17 Oct 2022 09:00
URI: https://epub.uni-bayreuth.de/id/eprint/6724

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