Communications in Physics 22, 193-200 (2012)

NEW DETERMINISTIC PROTOCOL FOR JOINT REMOTE PREPARATION OF TWO-QUBIT STATES

NUNG VAN DON, CAO THI BICH, NGUYEN BA AN

Designing quantum protocols with unit success probability is highly desirable from a viewpoint of the overall resource cost. In this work, we propose a new deterministic protocol for joint remote preparation of the most general two-qubit state using the same quantum/classical resource as in [An et al., Phys. Lett. A 375 (2011) 3570] and, at the same time, retaining the passive role of the receiver as in [Xiao et al., J. Phys. B: At. Mol. Opt. Phys. 44 (2011) 075501], which employs a different kind of nonlocal resource. From a practical point of view, this protocol proves most suitable in situations when only Einstein- Podelsky-Rosen pairs are supplied and the receiver is not capable of performing any measurements nor controlled-NOT gates.