Communications in Theoretical Physics

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Quantum-Dot Spin-Based Secret Sharing in an Optical Microcavity

ZHANG Ying-Qiao,1,2 ZHANG Shou,1 YEON Kyu-Hwang,2 and YU Seong-Cho2   


  1. 1Department of Physics, College of Science, Yanbian University, Yanji 133002, China

    2BK21 Physics Program and Department of Physics, College of Natural Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763, Korea

  • Received: 2010-09-25 Revised: 2010-10-25 Published: 2010-12-15

Abstract: Two schemes of quantum secret sharing are proposed via single electron spin confined in charged QDs inside a single-sided microcavity and a double-sided microcavity, respectively. Both schemes rely on coherent photon-spin interaction. The two schemes are both deterministic and can be extended to multipartite secret sharing.

Key words: secret sharing, quantum-dot spin, single-sided microcavity, double-sided microcavity

PACS numbers: 

  • 03.67.Lx