# Activating remote entanglement in a quantum network by local counting of identical particles

## TL;DR

This paper demonstrates that the indistinguishability of fermions enables a new method for activating remote entanglement in quantum networks through local particle counting and classical communication, enhancing quantum correlation transfer.

## Contribution

It introduces a novel entanglement transfer mechanism leveraging fermionic indistinguishability, which does not require shared history between distant nodes.

## Key findings

- Fermionic indistinguishability enables remote entanglement activation.
- Local counting of identical particles can induce nonlocal quantum correlations.
- The technique offers a more stable multistage transfer of quantum entanglement.

## Abstract

Quantum information and communication processing within quantum networks usually employs identical particles. Despite this, the physical role of quantum statistical nature of particles in large-scale networks remains elusive. Here, we show that just the indistinguishability of fermions makes it possible a new mechanism of entanglement transfer in many-node quantum networks. This process activates remote entanglement among distant sites, which do not share a common past, by only locally counting identical particles and classical communication. These results constitute the key achievement of the present technique and open the way to a more stable multistage transfer of nonlocal quantum correlations based on fermions.