# Entanglement access control for the quantum Internet

@article{Gyongyosi2019EntanglementAC, title={Entanglement access control for the quantum Internet}, author={Laszlo Gyongyosi and S{\'a}ndor Imre}, journal={Quantum Information Processing}, year={2019}, volume={18}, pages={1-17} }

Quantum entanglement is a crucial element of establishing the entangled network structure of the quantum Internet. Here we define a method to achieve controlled entanglement access in the quantum Internet. The proposed model defines different levels of entanglement accessibility for the users of the quantum network. The path cost is determined by an integrated criterion on the entanglement fidelities between the quantum nodes and the probabilities of entangled connections of an entangled path…

## 29 Citations

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## References

SHOWING 1-10 OF 77 REFERENCES

Entanglement Availability Differentiation Service for the Quantum Internet

- Computer Science, PhysicsScientific Reports
- 2018

The proposed EAD framework provides an efficient and easily-implementable solution for the differentiation of entanglement availability in experimental quantum networking scenarios.

Functional Quantum Nodes for Entanglement Distribution over Scalable Quantum Networks

- Physics, Computer ScienceScience
- 2007

The demonstrated quantum nodes and channels can be used as segments of a quantum repeater, providing an essential tool for robust long-distance quantum communication.

Topology adaption for the quantum Internet

- Computer ScienceQuantum Inf. Process.
- 2018

The problem of entanglement assignment in a quantum repeater network is studied, its computational complexity is proved, and an optimization procedure is shown to provide an efficient shortest path selection for the demands of all users of the network.

The quantum internet

- PhysicsNature
- 2008

This work states that quantum interconnects, which convert quantum states from one physical system to those of another in a reversible manner, can be achieved by the optical interactions of single photons and atoms, allowing the distribution of entanglement across the network and the teleportation of quantum states between nodes.

Decentralized Base-Graph Routing for the Quantum Internet

- Computer Science, PhysicsPhysical Review A
- 2018

The proposed method allows an efficient routing to find the shortest paths in entangled quantum networks by using only local knowledge of the quantum nodes, and gives bounds on the maximum value of the total number of entangled links of a path.

Quantum Internet: Networking Challenges in Distributed Quantum Computing

- Physics, Computer ScienceIEEE Network
- 2020

The goal of this work is to shed light on the challenges and open problems of Quantum Internet design and introduce quantum teleportation as the key strategy for transmitting quantum information without physically transferring the particle that stores the quantum information or violating the principles of quantum mechanics.

Dynamic topology resilience for quantum networks

- Computer ScienceOPTO
- 2018

This work studies the problem of entanglement assignment in a quantum repeater network, proves its computational complexity, and shows an optimization procedure.

Entanglement-Gradient Routing for Quantum Networks

- Computer ScienceScientific Reports
- 2017

The routing framework fuses the fundamentals of swarm intelligence and quantum Shannon theory with the characteristics of entanglement transmission and relevant measures of entangling distribution in quantum networks to allow a moderate complexity decentralized routing in quantum repeater networks.

Entanglement purification and quantum error correction

- Physics
- 2007

We give a review on entanglement purification for bipartite and multipartite quantum states, with the main focus on the theoretical work carried out by our group in the last couple of years. We…

Multilayer Optimization for the Quantum Internet

- Physics, Computer ScienceScientific Reports
- 2018

The multilayer optimization framework provides a practically implementable tool for quantum network communications, or long-distance quantum communications.