English

Inversion-free, noiseless Raman echoes

Quantum Physics 2011-11-22 v1

Abstract

Using double optical Raman rephasing, an inversion-free resonant Raman echo is studied in an inhomogeneously broadened spin ensemble of a solid medium, where the Raman optical field-excited spin coherence has a frozen propagation vector. Unlike photon echoes whose quantum memory application is strictly limited due to \pi rephasing pulse-induced population inversion causing quantum noises, the optical Raman field-excited spin echo is inherently silent owing to the frozen propagation vector. Thus, the doubly rephased Raman echo can be directly applied for quantum interface in a population inversion-free environment.

Keywords

Cite

@article{arxiv.1111.4607,
  title  = {Inversion-free, noiseless Raman echoes},
  author = {Byoung S. Ham},
  journal= {arXiv preprint arXiv:1111.4607},
  year   = {2011}
}

Comments

4 pages, 4 figures

R2 v1 2026-06-21T19:38:37.514Z