Generation of long-living entanglement between two atoms passing by a microsphere
Abstract
A scheme for deterministic generation of long-living maximally entangled states between two spatially well separated atoms is proposed[1,2]. In the scheme, λ-type atoms pass a resonator-like equipment of dispersing and absorbing macroscopic bodies giving rise to body-assisted electromagnetic field resonances of well-defined heights and widths. Strong atom-field coupling is combined with weak atom-field coupling to realize entanglement transfer from the dipole-allowed transitions to the dipole-forbidden transitions, thereby the entanglement being preserved when the atoms depart from the bodies and from each other. The theory is applied to the case of the atoms passing by a microsphere[3,4]. [1] ö. Cakir, H.T. Dung, D.G. Welsch, L. Knöll, quant-ph/0410033 [2] M.A. Can, ö. Cakir, A. Klyachko, and A. Shumovsky, Phys. Rev. A 68, 022305 (2003). [3] L. Knöll, S. Scheel, and D.-G. Welsch, in Coherence and Statistics of Photons, ed. J. Perina (Wiley, New York, 2001), p. 1 (for an update, see quant-ph/0003121). [4] Ho Trung Dung, S. Scheel, D.-G. Welsch, and L. Knöll, J. Opt B: Quantum Semiclass. Opt. 4, 169 (2002).
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- March 2005
- Bibcode:
- 2005APS..MAR.R1190C