Title
Scalable quantum circuit and control for a superconducting surface code
Author
Versluis, R.
Poletto, S.
Khammassi, N.
Tarasinski, B.
Haider, N.
Michalak, D.J.
Bruno, A.
Bertels, K.
DiCarlo, L.
Publication year
2017
Abstract
We present a scalable scheme for executing the error-correction cycle of a monolithic surface-code fabric composed of fast-flux-tunable transmon qubits with nearest-neighbor coupling. An eight-qubit unit cell forms the basis for repeating both the quantum hardware and coherent control, enabling spatial multiplexing. This control uses three fixed frequencies for all single-qubit gates and a unique frequency-detuning pattern for each qubit in the cell. By pipelining the interaction and readout steps of ancilla-based X- and Z-type stabilizer measurements, we can engineer detuning patterns that avoid all second-order transmon-transmon interactions except those exploited in controlled-phase gates, regardless of fabric size. Our scheme is applicable to defect-based and planar logical qubits, including lattice surgery.
Subject
Nano Technology
NI - Nano Instrumentation
TS - Technical Sciences
High Tech Systems & Materials
Physics
Industrial Innovation
To reference this document use:
http://resolver.tudelft.nl/uuid:baac544a-e02c-4efa-a7fc-64db12004055
TNO identifier
781234
Publisher
American Physical Society
ISSN
2331-7019
Source
Physical Review Applied, 8 (3)
Document type
article