Cooperative Optical Non-Linearity in a Blockaded Rydberg Ensemble

Cooperative Optical Non-Linearity in a Blockaded Rydberg Ensemble PDF Author: Jonathan D. Pritchard
Publisher: Springer Science & Business Media
ISBN: 3642297129
Category : Science
Languages : en
Pages : 161

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Book Description
This thesis describes the first demonstration of a cooperative optical non-linearity based on Rydberg excitation. Whereas in conventional non-linear optics the non-linearity arises directly from the interaction between light and matter, in a cooperative process it is mediated by dipole-dipole interactions between light-induced excitations. For excitation to high Rydberg states where the electron is only weakly bound, the dipole-dipole interactions are extremely large and long range, enabling an enormous enhancement of the non-linear effect. Consequently, cooperative non-linear optics using Rydberg excitations opens a new era for quantum optics enabling large single photon non-linearity to be accessible in free space for the first time. The thesis describes the theoretical underpinnings of the non- linear effect, the pioneering experimental results and implications for experiments in the single photon regime.