Magnon-Photon interactions for Quantum Key Distribution

被引:0
|
作者
Kumar, P. [1 ]
Prabhakar, A. [1 ]
机构
[1] IIT Kanpur, Dept Elect Engn, Kanpur 208016, Uttar Pradesh, India
来源
JOINT EUROPEAN MAGNETIC SYMPOSIA (JEMS) | 2011年 / 303卷
关键词
MAGNETOSTATIC WAVES;
D O I
10.1088/1742-6596/303/1/012040
中图分类号
O59 [应用物理学];
学科分类号
摘要
We propose an implementation of quantum key distribution (QKD) protocol using magnon-photon interactions in dielectric waveguides. Starting from the Hamiltonian of spin wave-optical interactions in asymmetric dielectric waveguide, we derive the single-photon transformations that allow us to define two non-orthogonal basis sets, which are isomorphic to polarization basis of single-photon. Implementation of the BB84 and B92 protocols is then straight forward. The principal advantage of our scheme is the higher quantum bit error rate (QBER) (37.5%) compared to polarization-coded scheme (25%) for simple intercept/resend attack. This considerably relaxes the specifications of optical components. Finally, we consider the effect of low conversion efficiency on QBER.
引用
收藏
页数:6
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