TY  - JOUR
AU  - Pommerening, Joel C.
AU  - DiVincenzo, David P.
TI  - What is measured when a qubit measurement is performed on a multiqubit chip
JO  - Physical review / A
VL  - 102
IS  - 3
SN  - 2469-9926
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2020-03280
SP  - 032623
PY  - 2020
AB  - We study how single-qubit dispersive readout works alongside two-qubit coupling. To make calculations analytically tractable, we use a simplified model which retains core characteristics of but is discretized compared to dispersive homodyne detection. We show how the measurement speed and power determine what information about the qubit(s) is accessed. Specifically we find the basis the measurement is closest to projecting onto. Compared to the basis in which gates are applied, this measurement basis is modified by the presence of photons in the readout resonator.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000575174800002
DO  - DOI:10.1103/PhysRevA.102.032623
UR  - https://juser.fz-juelich.de/record/884825
ER  -