Teleportation of composite systems for communication and information processing

TL;DR

This paper introduces two protocols for efficient quantum data transmission and teleportation of composite systems using a passive bus, enabling entanglement, information processing, and storage for various subsystem dimensions.

Contribution

It presents novel deterministic protocols for teleporting and transmitting composite quantum systems with arbitrary dimensions and entanglement capabilities.

Findings

Protocols work for arbitrary subsystem dimensions.

Achieves maximally entangling mappings for two qubits and qutrits.

Discusses use of continuous variable bus.

Abstract

We describe two protocols for efficient data transmission using a single passive bus. Different types of interactions are obtained enabling deterministic transfer and teleportation of composite quantum systems for arbitrary subsystem dimension and for arbitrary numbers of subsystems. The subsystems may become entangled in the transmission in which case the protocols can serve generalized teleportation based information processing as well as storage and transmission functions. We explore the cases of two qubits and two qutrits in detail, obtaining a maximally entangling mapping of the composite systems and discuss the use of a continuous variable bus.