Heralded Free-Electron Writing of the Most Subradiant State in an Atomic Array
A theoretical proposal demonstrates a heralded scheme using modulated free electrons to prepare the most subradiant collective state in an atomic array. By conditioning on the electron energy state after interaction, the method deterministically writes a long-lived entangled state that is robust against radiative decay.
AI analysis — not reported by the source
What this could mean
- 0–2 yearsPlausible
This heralded approach could enable on-demand preparation of highly subradiant states in neutral atom arrays, serving as long-lived quantum memories for quantum computing and networking.
Free-electron modulation techniques exist in electron microscopy, and optical tweezer arrays are mature platforms; combining them is an engineering challenge that several labs could tackle within two years.
This is a brief. The day’s lead story carries the full analysis.