Population transfer via a dissipative structural continuum

TL;DR

This paper introduces a model for quantum population transfer between two spins via a structural continuum using a multi-level STIRAP technique, demonstrating efficiency and stability even with moderate dissipation.

Contribution

It presents a novel approach called straddle STIRAP via continuum for quantum population transfer, integrating a structural continuum into the process.

Findings

Efficient population transfer achieved with the proposed model.

The process remains stable under moderate dissipation.

Multi-level STIRAP effectively bridges the continuum for quantum control.

Abstract

We propose a model to study quantum population transfer via a structural continuum. The model is composed of two spins which are coupled to two bosonic modes separately by two control pulses, and the two bosonic modes are coupled to a common structural continuum. We show that efficient population transfer can be achieved between the two spins by using a multi-level stimulated Raman adiabatic passage (STIRAP) across the continuum, which we refer to as straddle STIRAP via continuum. We also consider the stability of this model against different control parameters and show that efficient population transfer can be achieved even in presence a moderate dissipation.