Table 2 Comparison between our SQPC protocol and previous ones
Qubit efficiency | Need pre-shared keys | Transmission mode | |
|---|---|---|---|
Ref. [18] | \(\frac{n}{102n+1}\) | Yes | Distributed |
Ref. [19] | \(\frac{n}{60n+1}\) | Yes | Distributed |
Ref. [20] | \(\frac{n}{52n+1}\) | No | Distributed |
Ref. [21] | \(\frac{n}{53n+1}\) | Yes | Distributed |
Ref. [22] | \(\frac{n}{18n+1}\) | No | Circular |
Our protocol | \(\frac{n}{26n+1}\) | No | Distributed |