Experimental single qubit quantum secret sharing.
We present a simple and practical protocol for the solution of a secure multiparty communication task, the secret sharing, and its proof-of-principle experimental realization. In this protocol, a secret is split among several parties in a way that its reconstruction requires the collaboration of the participating parties. In our scheme the parties solve the problem by sequential transformations on a single qubit. In contrast with recently proposed schemes involving multiparticle Greenberger-Horne-Zeilinger states, the approach demonstrated here is much easier to realize and scalable in practical applications.
Schmid
Christian
C
Sektion Physik, Ludwig-Maximilians-Universität, D-80797 München, Germany.
Trojek
Pavel
P
Bourennane
Mohamed
M
Kurtsiefer
Christian
C
Zukowski
Marek
M
Weinfurter
Harald
H