Bonn 2025 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 41: Quantum Technologies (Color Centers and Ion Traps) I (joint session Q/QI)
Q 41.6: Vortrag
Mittwoch, 12. März 2025, 16:00–16:15, HS Botanik
Implementing the SUPER Scheme for Tin-Vacancy Spin Qubit Manipulation and Entanglement — •Cem Güney Torun1, Mustafa Gökçe1, Thomas K. Bracht2, Mariano Isaza Monsalve1, Sarah Benbouabdellah1, Özgün Ozan Nacitarhan1, Marco E. Stucki1,3, Domenica Bermeo Alvaro1,3, Matthew L. Markham4, Tommaso Pregnolato1,3, Joseph H. D. Munns1, Gregor Pieplow1, Doris E. Reiter2, and Tim Schröder1,3 — 1Department of Physics, Humboldt-Universität zu Berlin, 12489 Berlin, Germany — 2Condensed Matter Theory, Department of Physics, TU Dortmund, 44221 Dortmund, Germany — 3Ferdinand-Braun-Institut gGmbH, Leibniz-Institut für Höchstfrequenztechnik, 12489 Berlin, Germany — 4Element Six, Harwell, OX110 QR, United Kingdom
We investigate the SUPER scheme, a detuned coherent excitation method enabling spectral separation of excitation and emission fields, for spin qubit inversion in tin-vacancy center in diamond. Simulations show high-fidelity inversion of spin superposition is achievable with optimized parameters, while spin T1 measurements confirm that the broadband pulses do not induce significant spin mixing. Additionally, we propose a spin-spin entanglement protocol leveraging broadband excitation to encode photons in the frequency domain, enabling remote entanglement generation.
Keywords: tin-vacancy color center; entanglement; SUPER; coherent control; excitation