Dresden 2026 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 22: Superconductivity – Poster I
TT 22.17: Poster
Montag, 9. März 2026, 18:00–20:00, P1
Immersion Cooling of Transmon Qubits — •Vasilii Sevriuk1, Amber Carreck1, Daniel Doling1, Zakaria Mohamed1, Rais Shaikhaidarov1, Lev Levitin1, Petri Heikkinen1, Tobias Lindstrom2, Alexander Tzalenchuk1,2, Sebastian de Graaf2, Andrew Casey1, and John Saunders1 — 1Royal Holloway University of London, UK — 2National Physical Laboratory, UK
Superconducting qubits have become a standard platform both for developing new engineering approaches in quantum computation and for exploring fundamental questions in solid-state physics and quantum mechanics [1]. Despite this progress, achieving efficient thermalization of qubits remains an important challenge [2]. In this work, we present experimental results obtained by immersing a transmon qubit device into liquid helium and studying the temperature dependence of its key parameters. Our approach extends prior studies on immersion cooling of superconducting resonators [3].
[1] M. Devoret et al., arXiv:cond-mat/0411174
[2] D. Lvov et al., arXiv:2409.02784
[3] M. Lucas et al., Nat. Commun. 14, 3522 (2023)
Keywords: qubit; low temperature; transmon; liquid helium; thermalisation