Efficient population transfer via bright-state

TL;DR

This paper investigates how short laser pulses propagate through Lambda-type atoms, demonstrating superluminal propagation and analyzing conditions for efficient population transfer using adiabatic following.

Contribution

It introduces a method for efficient population transfer in Lambda-atoms via bright-state, highlighting superluminal pulse propagation under adiabatic conditions.

Findings

Superluminal propagation of laser pulses observed.

Conditions for optimal population transfer identified.

Adiabatic following enables efficient state manipulation.

Abstract

Propagation of short laser pulses in a medium of Lambda-atoms in the intuitive sequence and under conditions of adiabatic following is studied. The regime of superluminal propagation is obtained and the conditions of efficient population transfer in the medium are analyzed.