Two-party information splitting

Yuval Filmus, Hamed Hatami, Yaqiao Li +1 more

Yuval Filmus, Hamed Hatami, Yaqiao Li +1 more

Kaushik Nandi, Goutam Paul

We describe a protocol for quantum information splitting (QIS) of a restricted class of three-qubit states among three parties Alice, Bob and Charlie, using a pair of GHZ states as the quantum channel. There are two different forms of this three-qubit state that is used for QIS depending on the distribution of the particles among the three parties. There is also a special type of four-qubit state that can be used for QIS using the above channel. We explicitly construct the quantum channel, Alice's measurement basis and the analytic form of the unitary operations required by the receiver for such a purpose.

Andreas Jakoby, Maciej Liśkiewicz

Siddharth Karumanchi, Sreraman Muralidharan, Prasanta Kumar Panigrahi

We provide explicit schemes for quantum information splitting (QIS) of real or equatorial two qubit states among two parties, through the five particle cluster and Brown states respectively. The schemes introduced are neither fully deterministic nor completely probabilistic and are carried out in the case where, the information that is to be shared is partially or fully known to the sender. We show that, QIS can be accomplished with just two classical bits, as against four classical bits, when the information is unknown to the sender.

Seung Geol Choi, Ariel Elbaz, Ari Juels +2 more