Przestrzenna modulacja fazy jako nastawny mechanizm transferu informacji mi\k{e}dzy \'swiat{\l}em, a pami\k{e}ci\k{a} kwantow\k{a}

TL;DR

This doctoral thesis investigates phase matching in a cold atom quantum memory using non-resonant Raman scattering, exploring control methods like Zeeman and ac-Stark effects, laser geometry, and optical cavities to optimize information transfer between light and matter.

Contribution

It introduces new techniques for controlling quantum memory readout through phase matching adjustments in cold atom systems.

Findings

Demonstrated control of memory readout via Zeeman and ac-Stark effects

Analyzed the impact of laser beam geometry on phase matching

Explored the use of optical ring cavities to enhance memory performance

Abstract

This doctoral thesis focuses on the issue of phase matching in a quantum memory operating on a cold cloud of $^{87}$Rb atoms, where non-resonant Raman scattering is used as an interface between light and atoms. Experimental results and considerations for controlling the memory readout process by using the Zeeman effect, ac-Stark effect, controlling the laser beam geometry, or using an optical ring cavity are presented.