3 papers
quant-ph2025
2D transmons with lifetimes and coherence times exceeding 1 millisecond
Matthew P. Bland, Faranak Bahrami, Jeronimo G. C. Martinez +14
Materials improvements are a powerful approach to reducing loss and decoherence in superconducting qubits because such improvements can be readily translated to large scale process…
quant-ph2025
Sub-resonant wideband superconducting Purcell filters
Basil M. Smitham, Jeronimo G. C. Martinez, Christie S. Chiu +1
In superconducting quantum devices, Purcell filters protect qubit information from decaying into external lines by reducing external coupling at qubit frequencies while maintaining…
quant-ph2024
Reciprocal lumped-element superconducting circuits: quantization, decomposition, and model extraction
Basil M. Smitham, Andrew A. Houck
In this work, we introduce new methods for the quantization, decomposition, and extraction (from electromagnetic simulations) of lumped-element circuit models for superconducting q…