# Quantum teleportation of shared quantum secret

## TL;DR

This paper demonstrates a new quantum teleportation protocol for shared quantum secrets among multiple parties in a network, enabling secure and distributed quantum communication and computation.

## Contribution

It introduces and experimentally demonstrates a protocol for teleporting shared quantum information among multiple spatially separated parties without a trusted central node.

## Key findings

- Successful experimental demonstration of multi-party quantum teleportation
- Protocol allows secure sharing of quantum secrets among multiple parties
- Extensible to larger quantum networks with more participants

## Abstract

Quantum teleportation allows to transfer unknown quantum states between distant parties. It is not only a primitive of quantum communications but also an essential task in realization of the quantum networks for promising applications such as quantum cryptography and distributed quantum computation. Despite recent substantial progresses in the realization of quantum communications, teleportation of shared quantum information between multiple senders and receivers is still missing. Here we propose and experimentally demonstrate quantum teleportation among spatially separate parties in a quantum network. The protocol can be jointly performed by distributed participants, while none of them can fully access the transferred information. It can be generally extended to quantum communications incorporating an arbitrary number of parties without a trusted central node. Our work opens a route to the realization of distributed quantum communications and computations in quantum networks