Charting the circuit QED design landscape using optimal control theory
Goerz MH, Motzoi F, Whaley KB, Koch CP (2017)
Publication Type: Journal article
Publication year: 2017
Journal
Book Volume: 3
Article Number: 37
Journal Issue: 1
DOI: 10.1038/S41534-017-0036-0
Abstract
With recent improvements in coherence times, superconducting transmon qubits have become a promising platform for quantum computing. They can be flexibly engineered over a wide range of parameters, but also require us to identify an efficient operating regime. Using state-of-the-art quantum optimal control techniques, we exhaustively explore the landscape for creation and removal of entanglement over a wide range of design parameters. We identify an optimal operating region outside of the usually considered strongly dispersive regime, where multiple sources of entanglement interfere simultaneously, which we name the quasi-dispersive straddling qutrits regime. At a chosen point in this region, a universal gate set is realized by applying microwave fields for gate durations of 50 ns, with errors approaching the limit of intrinsic transmon coherence. Our systematic quantum optimal control approach is easily adapted to explore the parameter landscape of other quantum technology platforms.
Involved external institutions
Germany (DE)
United States (USA) (US)How to cite
APA:
Goerz, M.H., Motzoi, F., Whaley, K.B., & Koch, C.P. (2017). Charting the circuit QED design landscape using optimal control theory. npj Quantum Information, 3(1). https://doi.org/10.1038/S41534-017-0036-0
MLA:
Goerz, Michael H., et al. "Charting the circuit QED design landscape using optimal control theory." npj Quantum Information 3.1 (2017).
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