Scalable implementation of $(d+1)$ mutually unbiased bases for $d$-dimensional quantum key distribution

Takuya Ikuta, Seiseki Akibue, Yuya Yonezu +3

A high-dimensional quantum key distribution (QKD) can improve error rate tolerance and the secret key rate. Many $d$-dimensional QKDs have used two mutually unbiased bases (MUBs),…