# Optimal control of non-Markovian dynamics in a single-mode cavity strongly coupled to an inhomogeneously broadened spin ensemble

## TL;DR

This paper introduces an efficient control scheme for a spin ensemble coupled to a cavity, enabling improved quantum memory operations through classical control pulses and Volterra equations.

## Contribution

It presents a novel control method for non-Markovian spin-cavity systems using Volterra equations and weak classical pulses, advancing quantum memory control.

## Key findings

- Effective storage and readout sequences demonstrated
- Control scheme relies solely on classical pulses
- Approach paves the way for quantum optimal control implementations

## Abstract

Ensembles of quantum mechanical spins offer a promising platform for quantum memories, but proper functionality requires accurate control of unavoidable system imperfections. We present an efficient control scheme for a spin ensemble strongly coupled to a single-mode cavity based on a set of Volterra equations relying solely on weak classical control pulses. The viability of our approach is demonstrated in terms of explicit storage and readout sequences that will serve as a starting point towards the realization of more demanding full quantum mechanical optimal control schemes.