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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 20 — Oct. 15, 2013
  • pp: 4078–4081

Quantum entanglement in plasmonic waveguides with near-zero mode indices

Xing Ri Jin, Lei Sun, Xiaodong Yang, and Jie Gao  »View Author Affiliations


Optics Letters, Vol. 38, Issue 20, pp. 4078-4081 (2013)
http://dx.doi.org/10.1364/OL.38.004078


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Abstract

We investigate the quantum entanglement between two quantum dots (QDs) in a plasmonic waveguide with a near-zero mode index, considering the dependence of concurrence on interdot distance, QD waveguide frequency detuning, and coupling strength ratio. High concurrence is achieved for a wide range of interdot distances due to the near-zero mode index, which largely relaxes the strict requirement of interdot distance in conventional dielectric waveguides or metal nanowires. The proposed QD waveguide system with near-zero phase variation along the waveguide near the mode cutoff frequency shows very promising potential in quantum optics and quantum information processing.

© 2013 Optical Society of America

OCIS Codes
(270.0270) Quantum optics : Quantum optics
(270.5580) Quantum optics : Quantum electrodynamics
(250.5403) Optoelectronics : Plasmonics

ToC Category:
Quantum Optics

History
Original Manuscript: July 29, 2013
Revised Manuscript: September 16, 2013
Manuscript Accepted: September 17, 2013
Published: October 9, 2013

Citation
Xing Ri Jin, Lei Sun, Xiaodong Yang, and Jie Gao, "Quantum entanglement in plasmonic waveguides with near-zero mode indices," Opt. Lett. 38, 4078-4081 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-20-4078


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