Minimal classical communication and measurement complexity for quantum information splitting of a two qubit state

TL;DR

This paper presents efficient schemes for quantum information splitting of two-qubit states using minimal classical communication, reducing the classical bits needed from four to two when the sender has partial or full knowledge of the information.

Contribution

It introduces explicit, near-deterministic schemes for quantum information splitting with minimal classical communication using five-particle cluster and Brown states.

Findings

QIS achieved with just two classical bits when information is known to the sender.

Schemes are neither fully deterministic nor fully probabilistic.

Reduction of classical communication from four to two bits in certain cases.

Abstract

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.