Maximum entanglement of quantum-dot systems with single excitation in the spin van der Waals model

Author

Miranowicz, A. ; Ozdemir, S.K. ; Koashi, M. ; Imoto, N. ; Hirayama, Y.

Author_Institution

CREST Res. Team for Interacting Carrier Electron., Japan Sci. & Technol. Corp., Japan

Volume

2

fYear

2001

fDate

15-19 July 2001

Abstract

Time evolution of entanglement of N quantum dots are analyzed within the spin-1/2 van der Waals (or Lipkin-Meshkov-Glick) XY model. It is shown that, for a single dot initially excited and disentangled from the remaining unexcited dots, the maximum bipartite entanglement can be obtained in the systems of N=2, /spl middot//spl middot//spl middot/, 6 dots only.

Keywords

quantum optics; semiconductor quantum dots; spin; van der Waals forces; Lipkin-Meshkov-Glick XY model; initially excited; maximum bipartite entanglement; maximum entanglement; quantum mechanics; quantum-dot systems; single dot; single excitation; spin van der Waals model; spin-1/2 van der Waals model; time evolution; unexcited dots; Density estimation robust algorithm; Distributed computing; Information processing; Laboratories; Nonlinear optics; Physics; Quantum computing; Quantum dots; Quantum entanglement; Quantum mechanics;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2001. CLEO/Pacific Rim 2001. The 4th Pacific Rim Conference on

Conference_Location

Chiba, Japan

Print_ISBN

0-7803-6738-3

Type

conf

DOI

10.1109/CLEOPR.2001.970843

Filename

970843