Daniel Puzzuoli, Christopher Granade, et al.
Physical Review A - AMO
We present parity measurements on a five-qubit lattice with connectivity amenable to the surface code quantum error correction architecture. Using all-microwave controls of superconducting qubits coupled via resonators, we encode the parities of four data qubit states in either the X or the Z basis. Given the connectivity of the lattice, we perform a full characterization of the static Z interactions within the set of five qubits, as well as dynamical Z interactions brought along by single- and two-qubit microwave drives. The parity measurements are significantly improved by modifying the microwave two-qubit gates to dynamically remove nonideal Z errors.
Daniel Puzzuoli, Christopher Granade, et al.
Physical Review A - AMO
Riddhi S. Gupta, Ewout Van Den Berg, et al.
Physical Review A
Jerry M. Chow, Jay M. Gambetta, et al.
Nature Communications
Nicholas T. Bronn, Baleegh Abdo, et al.
WOLTE 2016