Who Has The Best Quantum Computer?

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This is a summary of all the main companies building quantum computers today, and what their most powerful machines are. You can get the digital image here: But we can’t simply look at qubits counts because so many other factors go into the quality of a quantum computer, so here I look at the quantum volume metric which is a much better way of comparing machines. And we look at what steps these companies need to take to achieve large scale useful general purpose quantum computers, and the timelines the companies have set out to achieve these.
#quantumcomputing #domainofscience

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Writer, art, animation and edited by Dominic Walliman
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--- References ----
[1] First quantum computer

[2] IBM Roadmap

[3] Google Roadmap

[4] D-Wave Roadmap

[5] Intel quantum computing

[6] Rigetti


[7] PsiQuantum hundreds of logical qubits


[8] ColdQuanta future prediction

[9] CLOPS definition from IBM

[10] UST of China’s quantum computers

[11] Alibaba and Baidu

[12] Xanadu

[13] PsiQuantum a million qubits by 2025

[14] Xanadu number of qubits (40)

[15] ColdQuanta number of qubits (100)

[16] Atom computing number of qubits (100)
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[17] IonQ roadmap

[18] Pasqal roadmap and merger with Qu&Co

[19] QuEra roadmap

[20] Silcon quantum computing roadmap


--- Chapters ---
00:00 Company Qubit Counts Summary
02:00 Quantum Volume and Factors Beyond Qubit Counts
05:34 The Best Quantum Computer Right Now
06:05 How To Build a General Purpose Quantum Computer
07:46 Predictions for the Rest of the Decade