PhD & Postdoc

Aleksei Sokolov

Condensed Matter Physics · Saint Petersburg State University

Aleksei Sokolov is a PhD candidate in Condensed Matter Physics at Saint Petersburg State University, supervised by Prof. Alexander Golubov. His thesis fabricates and characterises Josephson junction arrays on aluminium-on-silicon substrates, developing nanofabrication protocols to minimise two-level system defect densities critical for qubit readout fidelity in superconducting quantum processors. Twelve publications in Physical Review Applied and Superconductor Science and Technology document his junction characterisation and defect mitigation strategies. Aleksei completed a visiting researcher programme at TU Delft's quantum transport group and was awarded a Russian Science Foundation grant. He has received a research engineer offer from Rosatom's quantum computing division and was selected for the IBM Quantum Ambassador programme. His junction arrays show T1 coherence times exceeding 200 microseconds, enabling high-fidelity qubit readout.

Thesis Topic

Josephson junction arrays on aluminium-silicon substrates for superconducting qubit readout

Transition Signals