3 papers
quant-ph2025
Accelerated characterization of two-level systems in superconducting qubits via machine learning
Avinash Pathapati, Olli Mansikkamäki, Alexander Tyner +1
We introduce a data-driven approach for extracting two-level system (TLS) parameters-frequency , coupling strength , dissipation time , and the pure dephasi…
quant-ph2024
Two-tone spectroscopy for the detection of two-level systems in superconducting qubits
Olli Mansikkamäki, Alexander Tyner, Alexander Bilmes +2
Two-level systems (TLS) of unclear physical origin are a major contributor to decoherence in superconducting qubits. The interactions of individual TLS with a qubit can be detected…
quant-ph2023
Dissipation and Dephasing of Interacting Photons in Transmon Arrays
Oksana Busel, Sami Laine, Olli Mansikkamäki +1
Transmon arrays are one of the most promising platforms for quantum information science. Despite being often considered simply as qubits, transmons are inherently quantum mechanica…