Effective preparation of the N-dimension spin Greenberger–Horne–Zeilinger state with quantum dots embedded in microcavities. Issue 13 (19th July 2016)

• Record Type: Journal Article
• Authors: Kang, Yi-Hao; Xia, Yan; Lu, Pei-Min; Song, Jie
• Is Part Of: Journal of modern optics. Volume 63:Issue 13(2016)
• Page Start: 1313
• Page End: 1322
• Publication Date: 2016-07-19
• Subjects: Quantum dot -- Greenberger–Horne–Zeilinger state -- high dimension entanglement -- linear optical element; Optics -- Periodicals; 535
• DOI: 10.1080/09500340.2016.1143050
• Languages: English
• ISSNs: 0950-0340

Abstract

Abstract : We propose a scheme for preparation of the N -dimension spin Greenberger–Horne–Zeilinger state by exploiting quantum dots (QDs) embedded in microcavities. Numerically analysed results show that with the spin-selective photon reflection from the cavity, we can complete the scheme assisted by one polarized photon with high fidelity and 100% successful probability in principle. Furthermore, the set-up is just composed of simple linear optical elements, delay lines and conventional photon detectors, which are feasible with existing experimental technology. Moreover, QDs have numerous admirable features in weak-coupling regime, which are practicable in realistic cavity quantum electrodynamics system shown by previous numerical simulations and experiments. Therefore, our scheme might be realized in near future.