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Germanium Quantum Technology

01 /What can CMOS technology do for quantum computing? 02 /Semiconductor devices and scaling with industrial approach 03 /Semiconductor foundry facilities: the good and the bad for qubits 04 /IMEC's latest qubit developments 05 /Summary and outlook 06 /Semiconductors for spin qubits 07 /Germanium quantum wells on silicon 08 /Germanium quantum wells on silicon-germanium 09 /Growth methods 10 /Characterization techniques 11 /Electrical characterization of germanium quantum wells 12 /Fabrication of H-FET 13 /Semiconductor qubits: vision and challenges 14 /Quantum materials 15 /Quantum dot qubits and their operation 16 /Types of quantum dot qubits 17 /Qubit Readout 18 /Qubit Control 19 /Qubit Coherence and Fidelity 20 /Multi-qubit control and quantum algorithms 21 /Quantum links and scaling 22 /Physics of holes 23 /Hole spin qubits 24 /Introduction to electronics for quantum computing 25 /Room temperature electronics 26 /Cryogenic qubit chip carriers 27 /Contribution to IGNITE 28 /Quantum Control Stack for Spin Qubits 29 /Auto-tuning a quantum computer 30 /Tuning and operation of arrays 31 /Finding operation points example 32 /What is auto-tuning? 33 /Neural network tuning 34 /Navigating charge stability diagrams 35 /Experimental implementation 36 /Towards universal quantum algorithms 37 /Classical error correction 38 /Quantum error correction 39 /Progress and challenges 40 /Introduction to quantum algorithms 41 /The first algorithms 42 /Quantum annealing 43 /Quantum Machine Learning

What can CMOS technology do for quantum computing?

Classical computer chips work with millions and billions of transistors for their advanced functionalities. For a quantum computer, a useful application requires qubits in the million scale. Quantum computing research nowadays is at the level of a few tens or hundreds on the qubit number. How can we close the gap? 

With semiconductor-based spin qubits as the focus of the course, in this section, we consider how we can leverage our knowledge about semiconductors from the CMOS industry for qubit development, especially scaling. In this video series, together with IMEC’s senior researcher Ruoyu Li, you will look into how quantum computers can benefit from CMOS technology.  

Prerequisite knowledge

  • Basic understanding of quantum computing 
  • Semiconductor technology  

Main takeaways

  • Quantum computing can be much better at certain problems.

  • For real applications, a quantum computer needs many qubits (million scale and more).  

  • The skills and technology developed along the CMOS industry can help the development of quantum computation.   

Further thinking

True or False: Quantum computers, once realized, will outperform classical computers in all aspects.

Solution

Further reading

The Blog by Prof. Douglas Natelson at Rice University on industrial fabrication for quantum computing

nanoscale views: Bringing modern industrial nanofab to quantum computing

For research on qubits integrated with advance CMOS technology, you can check these papers:

https://arxiv.org/abs/1605.07599
https://arxiv.org/abs/2102.03929
https://arxiv.org/abs/2101.12650
https://arxiv.org/abs/2202.10303