English

How many atoms get excited when they decay?

Quantum Physics 2017-09-04 v1

Abstract

We analyze the time evolution of a two-level system prepared in a superposition of its ground state and radiatively unstable excited state. We show that by choosing appropriate means of detection of the radiated field, we can steer the evolution of the emitter and herald its preparation in the fully excited state. We determine the probability for the occurrence of this "excitation during the decay" of a remote emitter.

Keywords

Cite

@article{arxiv.1702.08824,
  title  = {How many atoms get excited when they decay?},
  author = {Philip Daniel Blocher and Klaus Molmer},
  journal= {arXiv preprint arXiv:1702.08824},
  year   = {2017}
}

Comments

11 pages (including appendix), 6 figures

R2 v1 2026-06-22T18:30:59.395Z