54 citations · 102 across the 6 of their papers we have counts for
6 papers
Quasiparticle-induced decoherence of a driven superconducting qubit
Mykola Kishmar, Pavel D. Kurilovich, Andrey Klots +3
We develop a theory for two quasiparticle-induced decoherence mechanisms of a driven superconducting qubit. In the first mechanism, an existing quasiparticle (QP) tunnels across th…
Recovery dynamics of a gap-engineered transmon after a quasiparticle burst
Heekun Nho, Thomas Connolly, Pavel D. Kurilovich +4
Ionizing radiation impacts create bursts of quasiparticle density in superconducting qubits. These bursts temporarily degrade qubit coherence which can be detrimental for quantum e…
Dispersive Non-reciprocity between a Qubit and a Cavity
Ying-Ying Wang, Yu-Xin Wang, Sean van Geldern +3
The dispersive interaction between a qubit and a cavity is ubiquitous in circuit and cavity quantum electrodynamics. It describes the frequency shift of one quantum mode in respons…
Coexistence of nonequilibrium density and equilibrium energy distribution of quasiparticles in a superconducting qubit
Thomas Connolly, Pavel D. Kurilovich, Spencer Diamond +5
The density of quasiparticles typically observed in superconducting qubits exceeds the value expected in equilibrium by many orders of magnitude. Can this out-of-equilibrium quasip…
Distinguishing parity-switching mechanisms in a superconducting qubit
Spencer Diamond, Valla Fatemi, Max Hays +8
Single-charge tunneling is a decoherence mechanism affecting superconducting qubits, yet the origin of excess quasiparticle excitations (QPs) responsible for this tunneling in supe…
Microwave susceptibility observation of interacting many-body Andreev states
V. Fatemi, P. D. Kurilovich, M. Hays +10
Electrostatic charging affects the many-body spectrum of Andreev states, yet its influence on their microwave properties has not been elucidated. We developed a circuit quantum ele…