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Quantum Networks

What are quantum networks, and their benefits and breakthroughs?

What is a quantum network?

What will quantum networks do?

Security

We use the internet constantly, from online banking to sending email. Continuous, reliable, and safe exchange of information is secured using encryption, but current encryption methods are unfortunately not immune to cyber-attacks. Importantly, the arrival of quantum computers poses a serious threat to existing encryption methods. A quantum internet uses entirely different encryption to protect our data against cyber-attacks.

A Quantum Cloud

Combining quantum communication with quantum computers will bring future quantum benefits closer. Building a single computer with a high number of logical qubits is still very difficult, but if we use quantum networks we can link multiple smaller quantum computers. By using such distributed computing, the system behaves like one virtual large-scale quantum computer.

Improved Scientific Instruments

High precision timing plays an important role in applications such as the Global Positioning System (GPS), gravitational wave detection systems and radio-astronomy. Quantum entanglement can be used to create instant coordination between two places, enhancing the accuracy of global positioning, gravitational wave detection and giant telescopes.

How to build a quantum network

Quantum Hardware

In order build a quantum network, there are two important components: a quantum processor node and an interface to link two or more systems over a distance. 

From QuTech Academy

What is a Quantum Internet?

Did you know that having just one qubit might be quite enough to build a fully functional quantum internet with many applications? Professor Stephanie Wehner introduces the building blocks of a quantum network and the power of entanglement. Which elements are essential to distribute entanglement successfully in networks like these?