Two schemes of multiparty quantum direct secret sharing via a six-particle GHZ state*
Xin-Wei Zha,Ruo-Xu Jiang,Min-Rui Wang
Table 1. The analysis of several schemes’ qubit efficiency.
Parameter/Scheme[18][17]Scheme 1Scheme 2
Classical bits of information in a four-party66612
Total qubits used in a four-party30362424
Qubits efficiency in a four-party20%16. 67%25%50%