Coherent manipulation of noise-protected superconducting artificial atoms in the Lambda scheme

Understand

We propose a new protocol for thr manipulation of a three-level artificial atom in Lambda ($\Lambda$) configuration in the absence of a direct pump coupling.

• It allows faithful, selective and robust population transfer analogous to stimulated Raman adiabatic passage ($\Lambda$-STIRAP), in highly noise protected superconducting artificial atoms.
• It combines the use of a two-photon pump pulse with suitable advanced control, operated by a slow modulation of the phase of the external fields, leveraging on the stability of semiclassical microwave drives.
• This protocol is a building block for novel tasks in complex quantum architectures.