Superconducting qubit gates based on accelerated adiabatic evolution

Quantum gates based on adiabatic evolution are in principle desirable because of their intrinsic robustness against small errors or imperfections in the control pulses. In practice however, the requirement of extremely long evolution times makes them very susceptible to dissipation and noise, resulting in poor fidelities. Recently, protocols based on shortcuts to adiabaticity have been used to design accelerated version of adiabatic quantum gates [1,2]. These gates can be fast while still possessing some of the robustness properties of purely adiabatic gates. We perform detailed theoretical studies and simulations exploring the performance of such gates in realistic superconducting qubit platforms. This includes single qubit gates in protected qubit architectures such as fluxonium, as well as two-qubit gates in cavity-coupled transmon architectures [3].
[1] H. Ribeiro and A. A. Clerk, Phys. Rev. A 100, 032323 (2019).
[2] T. Wang et al., Phys. Rev. Applied 11, 034030 (2019).
[3] D. J. Egger et al. Phys. Rev. Applied 11, 014017 (2019).