Table 1 Experimental parameters

From: Practical high-dimensional quantum key distribution protocol over deployed multicore fiber

Parameter

4D

μ1 (μ2)

0.36 (0.16)

\({p}_{{\mu }_{1}}\) (\({p}_{{\mu }_{2}}\))

0.81 (0.11)

\({QBER}_{{Z}_{{\mu }_{1}}}\)

2.15%

\({QBER}_{{Z}_{{\mu }_{2}}}\)

2.43%

\({QBER}_{{X}_{{\mu }_{1}}}\)

3.54%

\({QBER}_{{X}_{{\mu }_{2}}}\)

3.88%

pgate

0.53

  1. Measured QBERs, and achieved key rates in both bases, for the transmitted bases in the 4D protocol. The measured channel loss is 22 dB.