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Front Cover: Bright Electrically Controllable Quantum‐Dot‐Molecule Devices Fabricated by In Situ Electron‐Beam Lithography (Adv. Quantum Technol. 6/2021)
Author(s) -
Schall Johannes,
Deconinck Marielle,
Bart Nikolai,
Florian Matthias,
Helversen Martin,
Dangel Christian,
Schmidt Ronny,
Bremer Lucas,
Bopp Frederik,
Hüllen Isabell,
Gies Christopher,
Reuter Dirk,
Wieck Andreas D.,
Rodt Sven,
Finley Jonathan J.,
Jahnke Frank,
Ludwig Arne,
Reitzenstein Stephan
Publication year - 2021
Publication title -
advanced quantum technologies
Language(s) - English
Resource type - Reports
ISSN - 2511-9044
DOI - 10.1002/qute.202170061
Subject(s) - quantum dot , qubit , electron beam lithography , photon , optoelectronics , physics , spin (aerodynamics) , lithography , grating , materials science , optics , quantum , nanotechnology , layer (electronics) , quantum mechanics , resist , thermodynamics
The cover image presents an electrically controllable quantum‐dot‐molecule (QDM) device which can act as spin–photon interface in quantum communication networks. Electrical contacts enable efficient control of the conversion between stationary qubits and flying qubits, represented by the spin degree of charge carriers in the QDM and emitted photons, respectively. The spin–photon interface includes a monolithically integrated circular Bragg grating at the semiconductor surface to boost the emission of single photons. For further details see article number 2100002 by Stephan Reitzenstein and co‐workers.