# How to build a qubit

We have been hearing about qubits for a long time now. We have mainly seen their mathematical representation. The next step is to think further and try to investigate how these qubits can be built in real-life laboratories. Florian Unseld (QuTech) will show us the different kinds of qubits that exist nowadays and their different advantages.

## Prerequisite knowledge

- Quantum bits
- Quantum mechanics (undergraduate level)
- (nice to have) Standard knowledge on transistors

## Further thinking

Which property of photons is commonly used to encode a qubit?

How can strain be applied to a layer of silicon in a quantum dot?

## Further reading

For more information on NV centers see: https://qt.eu/discover-quantum/underlying-principles/nv-centers/

For more detail, see: https://qutech.nl/wp-content/uploads/2017/03/Diamond-NV-centers-for-quantum-computing-and-quantum-networks.pdf

Trapped ions:

https://arxiv.org/abs/0809.4368

Spin qubits:

https://arxiv.org/abs/cond-mat/0610433

https://arxiv.org/abs/1206.5202

Superconducting qubits:

https://arxiv.org/abs/1904.06560

https://arxiv.org/abs/1905.13641