How Deep the Theory of Quantum Communications Goes: Superadditivity, Superactivation and Causal Activation

by   Seid Koudia, et al.

In the theory of quantum communications, a deeper structure has been recently unveiled – mainly within the physics community – showing that the capacity does not completely characterize the channel ability to transmit information due to phenomena – namely, superadditivity, superactivation, and causal activation – with no counterpart in the classical world. Although how deep goes this structure is yet to be fully uncovered, it is crucial for the communication engineering community to own the implications of these phenomena for understanding and deriving the fundamental limits of communications. Hence, the aim of this paper is to shed light on these phenomena by providing the reader with an easy access and guide towards the relevant literature and the prominent results, by adopting a communication engineering perspective.



There are no comments yet.


page 1

page 2

page 3

page 4


When Entanglement meets Classical Communications: Quantum Teleportation for the Quantum Internet (Invited Paper)

Quantum Teleportation is the key communication functionality of the Quan...

Capacity Bounds for Quantum Communications through Quantum Trajectories

In both classical and quantum Shannon's information theory, communicatio...

Towards a Distributed Quantum Computing Ecosystem

The Quantum Internet, by enabling quantum communications among remote qu...

Quantum communication in a superposition of causal orders

Quantum mechanics allows for situations where the relative order between...

Computational Complexity and the Nature of Quantum Mechanics

Quantum theory (QT) has been confirmed by numerous experiments, yet we s...

Physics-Informed Quantum Communication Networks: A Vision Towards the Quantum Internet

Quantum communications is a promising technology that will play a fundam...
This week in AI

Get the week's most popular data science and artificial intelligence research sent straight to your inbox every Saturday.