A controlled protocol for asymmetric cyclic ( A ⇒ B ⇒ C ⇒ A ) quantum state transfer between three parties
Binayak Samadder Choudhury, Soumen Samanta · Physica Scripta · 2019
Abstract Cyclic teleportation scheme was introduced in a recent work by Chen et al (2017 Quantum Inf. Process . 16 201). Also certain protocols for asymmetric exchange of states have appeared in some recent works. In this paper, combining the above two concepts, we design a protocol for teleporting three different states cyclically between three parties. These three states are certain single-qubit, two-qubit and three-qubit states. The protocol is overseen by a controller. The communication scheme presented here falls in the category of quantum multi-tasking in which multiple tasks are performed using a single quantum resource.