Transmitting qubits through relativistic fields

TL;DR

This paper explores how quantum information can be transmitted through relativistic fields, addressing the challenges of wireless quantum communication within the constraints of quantum mechanics.

Contribution

It extends existing frameworks to enable non-perturbative quantum state transfer in relativistic fields, specifically in 1+1 dimensions, opening new avenues for quantum communication tasks.

Findings

Demonstrates the feasibility of wireless quantum communication via relativistic fields.

Introduces a non-perturbative framework for quantum state transfer.

Suggests new methods for quantum secret sharing in relativistic settings.

Abstract

Wireless communication derives its power from the simultaneous emission of signals in multiple directions. However, in the context of quantum communication, this phenomenon must be reconciled carefully with the no-cloning principle. In this context, we here study how wireless communication of quantum information can be realized via relativistic fields. To this end, we extend existing frameworks to allow for a non-perturbative description of, e.g., quantum state transfer. We consider, in particular, the case of 1+1 spacetime dimensions, which already allows a number of interesting scenarios, pointing to, for example, new methods for tasks similar to quantum secret sharing.