Quantum Control in Qutrit Systems using Hybrid Rabi-STIRAP Pulses

Understand

We introduce and analyze theoretically a procedure that combines slow adiabatic STIRAP manipulation with short nonadiabatic Rabi pulses to produce any desired three-level state in a qutrit system.

• In this protocol, the fast pulses create superpositions between the ground state and the first excited state, while the slow pulses transfer an arbitrary population to the second excited state via stimulated Raman adiabatic passage (STIRAP).
• We demonstrate high-fidelity quantum control of the level populations and phases and we characterize the errors incurred under the breakdown of adiabaticity.
• In a configuration where an ancillary state is available, we show how to realize a nondemolition monitoring of the relative phases.