Daniel Bowring, Fermilab

Qubits and other quantum devices offer an appealing path towards low-threshold dark matter detectors. And conversely, the facilities and methodologies of HEP detector development offer new insights into fundamental questions of QIS device coherence. We will discuss various synergies between these two communities, in the context of particle physics R&D at Fermilab, and more broadly at the NQI Quantum Science Center. We are developing simulations of quantum devices in which charge and phonon dynamics are coupled to device performance. And in parallel, we maintain underground, low-background test stands and a suite of characterization tools that allow for sensitive and precise studies of device decoherence phenomena. This seminar will present these capabilities in the context of recent studies of correlated charge noise in superconducting qubits, arising from terrestrial and cosmic sources of ionizing radiation.