Speaker
Description
In order to understand the effects of cosmic rays on superconducting qubits we have developed a that system correlates cosmic ray events with decoherence in qubits. This system consists of a qubit chip sandwiched between two arrays of MKIDs. We recent showed that both $T_1$ and $T_2$ times decreased when events were detected on our MKIDs. Now we look to expand the capabilities of our system from just temporal correlations to include spatial correlations. This will give us the ability to further understand correlated qubit errors as well as non-equilibrium quasiparticle dynamics. To do this we have needed to calibrate our MKID arrays’ spatial mapping, energy response, and power response. This poster discusses our techniques of using a laser raster system, pump-probe and correlation analysis, and temperature power sweeps to calibrate our arrays.
Prepared by LLNL under Contract DE-AC52-07NA27344.
