Generation of atomic Greenberger–Horne–Zeilinger states and cluster states through cavity-assisted interaction

Abstract

This paper proposes a scalable scheme to generate n-atom GHZ states and cluster states by using the basic building block, i.e., a weak coherent optical pulse |α being reflected successively from a single-atom cavity. In the schemes, coherent state of light is used instead of single photon source, homodyne measurement on coherent light is done instead of single photon detection, and no need for individually addressing keeps the schemes easy to implement from the experimental point of view. The successful probabilities of our protocols approach unity in the ideal case.

Research on Intelligent System for Cavity Filter Tuning

“…In satellite communication system, the performance of microwave filter influences directly the communication quality of transmission channel [7] . In radio communication system, filter is a kind of fatal microwave RF device, it is fundamental to separate frequency information, enhance communication quality, prevent signal crosstalk, etc [8][9] [10] . Today, as the electromagnetic environment is complex and spectral range is crowded day by day, user pays more attention to filter for the function of frequency-selecting and de-nosing.…”