  Robust quantum control is essential for the development of quantum computers,
which rely on precise manipulation of qubits. One form of quantum control is
stimulated Raman adiabatic passage (STIRAP), which ordinarily is a state
transfer protocol but was extended by Kis and Renzoni (Phys. Rev. A 65, 032318
(2002)) to perform qubit rotations. Shortcut methods to adiabaticity for STIRAP
have been shown to speed up adiabatic processes, beyond the adiabatic
criterion, with high fidelity. Here, we apply shortcut to adiabaticity methods
to the STIRAP qubit rotation scheme to improve the performance of quantum logic
gates. The scheme can be implemented via direct connections between ground
states in a 4-level $\Lambda$ system or effective connections in a 5-level
$\Lambda$ system with modified pulses that implement transitionless quantum
driving via the addition of a counterdiabatic driving term. We show that the
extended shortcut to adiabaticity method serves to improve the fidelity of
qubit rotations in the diabatic regime.
