A universal protocol for bidirectional controlled teleportation with network coding
Meng-Yao He,Song-Ya Ma,Kun-Peng Kang
Table 3.
Comparison of the symmetric protocol for two-qubit states (
n
1
=
n
2
= 2).
Protocol
QC
BO
CCC
NQT
η
[
17
]
10-ES
BSM, SQM, RUO
10
4
$\tfrac{1}{5}=20 \% $
[
18
]
9-ES
BSM, SQM, RUO
9
4
$\tfrac{2}{9}\approx 22.22 \% $
[
19
]
9-ES
BSM, SQM, RUO
9
4
$\tfrac{2}{9}\approx 22.22 \% $
Ours
9-ES
BSM, SQM, RUO
12
4
$\tfrac{4}{21}\approx 19.05 \% $