Analysis of controlled Rabi flopping in a double rephasing photon echo scheme for quantum memories

TL;DR

This paper investigates how controlled Rabi flopping can manipulate atom coherence phases in a double rephasing photon echo scheme, enabling inversion-free, emissive photon echoes for improved quantum memory performance.

Contribution

It introduces a method to control atom coherence phases using Rabi flopping, enabling emissive photon echoes in a double rephasing scheme for quantum memories.

Findings

Rabi flopping induces coherence inversion in double rephasing schemes.

Controlled phase manipulation allows for emissive photon echoes.

Potential for inversion-free quantum memory applications.

Abstract

A double rephasing photon echo is analyzed for inversion-free photon echo-based quantum memories using controlled Rabi flopping, where the Rabi flopping is used for phase control of atom coherence. Unlike the rephasing-caused pi-phase shift in a single rephasing scheme, the control Rabi flopping between the excited state and an auxiliary third state induces coherence inversion. Thus, the absorptive photon echo in a double rephasing scheme can be manipulated to be emissive via the controlled Rabi flopping. Here we present a quantum coherence control of atom phases in a double rephasing photon echo scheme for emissive photon echoes for quantum memory applications.