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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

The Building Blocks of a Quantum Computer

Introduction

One of the strong suits of classical computers is that we can connect all the complex layers in the computer to a simple User Interface (UI), making the computer accessible for everyone! So how will this work for the quantum computer? Quantum computers will exist of multiple building blocks. In fact, we need a lot of blocks before we can run our Quantum algorithm. See the schematic!

This video will give you an overview of the whole system. Koen Bertels, professor at QuTech, will take you on a journey through all layers. In other videos on this platform, we will dive deeper into each specific layer.

 

Prerequisite knowledge

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Further thinking

What aspects do you think make the scaling of number of qubits something difficult to achieve?

Solution

Further reading

  • A timeline of the steps forward in the development of quantum computing.

  • The guide principles of dilutation refrigeration gives some background on the refrigerators used for quantum computing. Dilution refrigerators have been used for cooling anything from millimeter-sized semiconductors to 3-ton gravitational wave detectors, down to milliKelvin (mK) temperatures.