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quant-ph2025
Broadband and high-precision two-level system loss measurement using superconducting multi-wave resonators
Cliff Chen, Shahriar Aghaeimeibodi, Yuki Sato +3
Two-level systems (TLS) are known to be a dominant source of dissipation and decoherence in superconducting qubits. Superconducting resonators provide a convenient way to study TLS…
quant-ph2025
Cavity-mediated cross-cross-resonance gate
Alexey V. Gorshkov, Daniel Cohen, Arbel Haim +8
We propose a cavity-mediated gate between two transmon qubits or other nonlinear superconducting elements. The gate is realized by driving both qubits at a frequency that is near-r…
quant-ph2024
Fast Unconditional Reset and Leakage Reduction of a Tunable Superconducting Qubit via an Engineered Dissipative Bath
Gihwan Kim, Andreas Butler, Vinicius S. Ferreira +4
Rapid and accurate initialization of qubits, reset, is a crucial building block for various tasks in quantum information processing, such as quantum error-correction and estimation…