Feng-Xiao Sun

Generating optical cat states via quantum interference of multi-path free-electron–photons interactions

2023 · 中国科学通报：英文版

The novel quantum effects induced by the free-electron-photons interaction have attracted increasing interest due to their potential applications in ultrafast quantum information processing. Here, we propose a scheme to generate optical cat states based on …

Assisted metrology and preparation of macroscopic superpositions with split spin-squeezed states

2023 · arXiv (Cornell University)

We analyse the conditional states in which one part of a split spin-squeezed state is left, upon performing a collective spin measurement on the other part. For appropriate measurement directions and outcomes, we see the …