Generation of Two-Atom Maximal Entanglement and Quantum Information Transfer via Microtoroidal Cavity-Atom System

We propose a scheme for generation of two-atom maximally entangled states and the quantum information transfer between two atoms via two identical atoms in resonation with ultrahigh-Q, toroidal microcavities.     

Design and fabrication of a silica optical micro-kayak cavity on a silicon chip

A new type of silica optical micro-kayak cavity fabricated on a silicon chip is designed and demonstrated.This micro-kayak cavity with two straight sides and two semi-circle sides can be used to achieve a compact and flexible arrangement in the design of integrated photonic circuits.The micro-kayak cavity can also be embedded with a Bragg reflection grating in the straight sides for frequency selection using a micro-kayak cavity laser doped with a rare-earth ion.We describe the fabrication methods for the micro-kayak cavity,obtain its spectra,and discuss its potential applications.