ÖPG-CMD Joint Meeting 2026

Stabilization of relaxation and reduction of decoherence by periodic biasing of TLSs in superconducting qubit circuits

Sep 24, 2026, 10:30 AM

30m

HS 15.03 (University of Graz)

4) Invited talk M05 - Transport in low-dimensional strongly correlated quantum systems Mini-Colloquium

Speaker

Prof. Moshe Schechter (Ben Gurion University)

Description

Structural tunneling two-level systems (TLSs), generically present in amorphous solids and at interfaces, are dominant source of noise and decoherence in quantum devices. Mitigation of their deleterious effects is thus of utmost importance in the quest of improving performance of superconducting resonators and qubits. Here I will discuss the effect of periodic biasing of the TLSs in stabilizing qubit relaxation rates and in reducing qubit decoherence rates in general, and specifically for the case of dual rail qubits.
[1] S. Matityahu, A. Shnirman, M. Schechter, Phys. Rev. Applied 16, 044036 (2021).
[2] S. Matityahu, A. Shnirman, M. Schechter, Phys. Rev. Applied 21, 044055 (2024).
[3] J. E. Jaloveckas, A. Shnirman, M. Schechter, in preparation.