Fundamentals of Quantum Optics II

Thomas Durt, Victor N. Zadkov

Ehlotzky, Fritz

Gaetano Assanto

Based on cascading through Type II second-harmonic generation, I show how all-optical amplitude modulation and switching can be obtained by utilizing an input wave at the fundamental frequency with unequal orthogonal spatial components. The proposed all-optical transistor/switch is insensitive to the inputs' relative phase, representing a step forward with respect to previously suggested configurations for transparent photonic networks.

Frank Vollmer, Deshui Yu

Janik Wolters

In Part I, several fundamental results of theoretical quantum optics and light-matter interaction are elaborated. It provides all necessary theoretical background to understand the physics of the single quantum emitters introduced in Part II and later on coupled systems discussed in Part IV.

R. Stock, Nathan S. Babcock, Mark G. Raizen +1 more

We construct a scheme for the preparation, pairwise entanglement via exchange interaction, manipulation, and measurement of individual group-II-like neutral atoms (Yb, Sr, etc.). Group-II-like atoms proffer important advantages over alkali metals, including long-lived optical-transition qubits that enable fast manipulation and measurement. Our scheme provides a promising approach for producing weighted graph states, entangled resources for quantum communication, and possible application to fundamental tests of Bell inequalities that close both detection and locality loopholes.