PhD Position Theory in Quantum Communication Networks

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QuTech, TU Delft
20 August, 2018


Lorentzweg 1
Delft 2628 CJ
52° 0' 3.2112" N, 4° 22' 26.6484" E

A PhD Position is available to work on long-distance quantum communication networks!


The vision of a Quantum Internet is to provide fundamentally new internet technology by enabling quantum communication between any two points on earth. Such a Quantum Internet will – in synergy with the ‘classical’ internet that we have today - connect quantum processors in order to achieve unparalleled capabilities that are provably impossible using classical communication.

As with any radically new technology, it is hard to predict all uses of the future Quantum Internet, but several major applications have already been identified. One striking application of quantum communication is quantum key distribution (QKD), which allows two remote network nodes to generate an encryption key, enabling the exchange of secret information between any users connected to the Quantum Internet. The security of QKD is guaranteed by the fundamental laws of nature, and thus fully future proof even against any attacker possessing a large-scale quantum computer. Other promising known applications are clock synchronization, extending the baseline of telescopes, secure identification, achieving efficient agreement on distributed data, exponential savings in communication, quantum sensor networks, as well as secure access to remote quantum computers in the cloud.

Central to all these applications is the ability to send quantum bits (qubits). Qubits are fundamentally different from classical bits. While a classical bit can take only two values, ’0’ and ’1’, a qubit can be in a superposition of being ’0’ and ’1’ at the same time.

Quantum Internet at QuTech

QuTech pursues a targeted effort to make quantum communication networks a reality, including both hardware and software at the cutting edge of research and development. In 2020, QuTech aims to establish the first demonstration network linking quantum processors in different cities, and pursues a long term effort to enable long distance quantum communication.


A PhD Position is availble in the design of quantum repeaters and quantum communication networks. This involves both theoretical designs and analysis, as well as numerical simulations on a purpose built simulation platform at QuTech. While this is a purely theoretical project, an interest in the workings of experimental realizations is useful.

- You have a master’s degree in physics, or a master degree in computer science and engineering with a strong background in quantum information at the time of starting your PhD project.
- You enjoy working in a team, and have excellent communication and interpersonal skills.
- You are creative and flexible working in a mission driven environment to realize quantum networks

How to apply

Applications can be made via the general application fo

rm, please check QuTech and indicate in your motivation letter that you are applying for this position.

For questions please email Prof. Stephanie Wehner at s [dot] d [dot] c [dot] wehner [at] tudelft [dot] nl

Fully funded position. This project is in the context of the quantum internet alliance and located at QuTech in the groups of Stephanie Wehner and David Elkouss.

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