2 papers
quant-ph2025
Non-equilibrium Dynamics of Two-level Systems directly after Cryogenic Alternating Bias
V. Iaia, E. S. Joseph, S. Im +10
Two-level systems (TLSs) are tunneling states commonly found in amorphous materials that electrically couple to qubits, resonators, and vibrational modes in materials, leading to e…
cond-mat.supr-con2025
Growth and Structure of alpha-Ta films for Quantum Circuit Integration
Loren D. Alegria, Alex Abelson, Eunjeong Kim +5
Tantalum films incorporated into superconducting circuits have exhibited low surface losses, resulting in long-lived qubit states. Remaining loss pathways originate in microscopic…