Scalable Quantum Circuit and Control for a Superconducting Surface Code
| Autor: | R. Versluis, S. Poletto, N. Khammassi, B. Tarasinski, N. Haider, D. J. Michalak, A. Bruno, K. Bertels, L. DiCarlo |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Computer science
NI - Nano Instrumentation FOS: Physical sciences General Physics and Astronomy High Tech Systems & Materials 02 engineering and technology Topology 01 natural sciences Quantum circuit Computer Science::Emerging Technologies Lattice (order) 0103 physical sciences Hardware_ARITHMETICANDLOGICSTRUCTURES 010306 general physics Quantum Superconductivity Quantum Physics TS - Technical Sciences Industrial Innovation Physics Transmon 021001 nanoscience & nanotechnology Spatial multiplexing Coherent control Qubit Nano Technology Quantum Physics (quant-ph) 0210 nano-technology |
| Zdroj: | Physical Review Applied, 8(3) Physical Review Applied, 3, 8 |
| ISSN: | 2331-7019 |
| Popis: | We present a scalable scheme for executing the error-correction cycle of a monolithic surface-code fabric composed of fast-flux-tuneable 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. Comment: 9 pages, 8 figures |
| Databáze: | OpenAIRE |
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