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Quantum Computer

01 /Quantum Computers 02 /How to build a qubit 03 /Spin qubits (beginner level) 04 /Operations on spin qubits (beginner level) 05 /Electron spin qubits 06 /Capturing a single electron 07 /Quantum dot qubits 08 /Quantum control and readout 09 /Qubit errors 10 /NV center qubits 11 /Operations on NV center qubits 12 /The Transmon Qubit - A basis for the Quantum Computer 13 /Operations on the Transmon Qubit - Circuit QED 14 /Single-qubit operations on the Transmon qubit 15 /Measurements on the Transmon Qubit 16 /Two-qubit operations on the Transmon qubit 17 /Topological qubits: Anyons 18 /Operations on anyons: Braiding 19 /Operations on anyons: Real-life experiments 20 /Topological quantum computing: Majorana fermions and where to find them 21 /Majorana bound states in superconductors 22 /How do you measure Majorana bound states? 23 /A framework for the future Quantum Computer 24 /The Building Blocks of a Quantum Computer 25 /How to build a Quantum Algorithm - Quantum Circuits 26 /How do you program a quantum algorithm? 27 /The compiler of a quantum computer 28 /Micro-architectures 29 /How do we connect our quantum system to a classical interface? 30 /Assembling a Quantum Processor 31 /Microwave drivers for qubits 32 /Implementation of microwave drivers 33 /Quantum error correction 34 /Surface codes 35 /Fault-tolerant Quantum Error Correction with surface codes

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?

Solution

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