The European Physical Journal D

, Volume 61, Issue 2, pp 523–529

Production of entanglement in Raman three-level systems using feedback

Article

DOI: 10.1140/epjd/e2010-10442-2

Cite this article as:
Stevenson, R., Carvalho, A. & Hope, J. Eur. Phys. J. D (2011) 61: 523. doi:10.1140/epjd/e2010-10442-2

Abstract.

We examine the theoretical limits of the generation of entanglement in a damped coupled ion-cavity system using jump-based feedback. Using Raman transitions to produce entanglement between ground states reduces the necessary feedback bandwidth, but does not improve the overall effect of the spontaneous emission on the final entanglement. We find that the fidelity of the resulting entanglement will be limited by the asymmetries produced by vibrations in the trap, but that the concurrence remains above 0.88 for realistic ion trap sizes.

Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.Department of Quantum ScienceResearch School of Physics and Engineering, The Australian National UniversityACTAustralia
  2. 2.Australian Centre for Quantum-Atom Optics, Department of Quantum ScienceResearch School of Physics and Engineering, The Australian National UniversityACTAustralia