Surface plasmons in a metal nanowire coupled to colloidal quantum dots: Scattering properties and quantum entanglement

Guang Yin Chen, Neill Lambert, Chung Hsien Chou, Yueh Nan Chen, Franco Nori

Research output: Contribution to journalArticlepeer-review

97 Citations (Scopus)

Abstract

We investigate coherent single surface-plasmon transport in a metal nanowire strongly coupled to two colloidal quantum dots. Analytical expressions are obtained for the transmission and reflection coefficients by solving the corresponding eigenvalue equation. Remote entanglement of the wave functions of the two quantum dots can be created if the interdot distance is equal to a multiple half-wavelength of the surface plasmon. Furthermore, by applying classical laser pulses to the quantum dots, the entangled states can be stored in metastable states that are decoupled from the surface plasmons.

Original languageEnglish
Article number045310
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume84
Issue number4
DOIs
Publication statusPublished - 2011 Jul 13

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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