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: https://www.flickr.com/photos/95869671@N08/51849762629/in/dateposted-public/ 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 -- Get My Posters Here --- DFTBA Store: null RedBubble Store: https://www.redbubble.com/people/DominicWalliman I have also made posters available for personal or educational use which you can find here: https://www.flickr.com/photos/95869671@N08/ - Some Awesome People -- And many thanks to my $10 supporters and above on Patreon, you are awesome! Join the gang and help support me produce free and high quality science content: https://www.patreon.com/domainofscience Raj Duphare Ben Derp Eric Epstein Gordon D Collins Jason Evans Kamil Qbitskey Mirik Gogri noggieB Petr Murmak Prabhakar R Reggie Fourmyle Sandy Toye Sebastian Terrence Masson Theodore Chu Guillaume Dorschner Joshua Rauß -- Special thanks -- Special thanks for giving their time to help me with the script to: Michał Stęchły Nicholas Bronn -- My Science Books --- I also write science books for kids called Professor Astro Cat. You can see them all here: null http://profastrocat.com/ -- Follow me around the internet -- http://dominicwalliman.com/ https://twitter.com/DominicWalliman https://www.instagram.com/dominicwalliman -- Credits -- Writer, art, animation and edited by Dominic Walliman I use Adobe Illustrator and After Effects for the graphics (for the many people who ask :) -- References --- [1] First quantum computer https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.80.3408 [2] IBM Roadmap https://research.ibm.com/blog/quantum-development-roadmap [3] Google Roadmap https://blog.google/technology/ai/unveiling-our-new-quantum-ai-campus/ [4] D-Wave Roadmap https://www.dwavesys.com/media/xvjpraig/clarity-roadmap_digital_v2.pdf [5] Intel quantum computing https://www.intel.com/content/www/us/en/research/quantum-computing.html [6] Rigetti https://www.rigetti.com/ https://quantumcomputingreport.com/rigetti-announced-40-and-80-qubit-processors-and-collaborations-with-deloitte-and-strangeworks-to-explore-quantum-applications/ [7] PsiQuantum hundreds of logical qubits https://psiquantum.com/resources https://www.nextbigfuture.com/2020/04/psiquantum-targets-million-silicon-photonic-qubits-by-2025.html [8] ColdQuanta future prediction https://coldquanta.com/quantum-computing [9] CLOPS definition from IBM https://arxiv.org/abs/2110.14108 [10] UST of China’s quantum computers https://www.scientificamerican.com/article/china-is-pulling-ahead-in-global-quantum-race-new-studies-suggest/ [11] Alibaba and Baidu https://www.scmp.com/abacus/tech/article/3034469/they-lag-behind-google-alibaba-and-baidu-are-also-fighting-quantum [12] Xanadu https://spectrum.ieee.org/race-to-hundreds-of-photonic-qubits-xanadu-scalable-photon [13] PsiQuantum a million qubits by 2025 https://www.nextbigfuture.com/2020/04/psiquantum-targets-million-silicon-photonic-qubits-by-2025.html [14] Xanadu number of qubits (40) https://www.wsj.com/articles/xanadu-lands-100-million-as-investments-pour-into-quantum-computing-11621944002 [15] ColdQuanta number of qubits (100) https://thequantuminsider.com/2021/07/26/tqd-exclusive-coldquanta-masters-cold-atoms-the-oldest-new-kid-on-the-block-in-quantum-computing-to-power-quantum-scalability/ [16] Atom computing number of qubits (100) https://www.forbes.com/sites/moorinsights/2021/11/18/atom-computing-a-quantum-computing-startup-that-believes-it-can-ultimately-win-the-qubit-race/#:~:text=Phoenix%2C%20the%20name%20of%20Atom's,uses%20100%20optically%20trapped%20qubits. [17] IonQ roadmap https://ionq.com/posts/december-09-2020-scaling-quantum-computer-roadmap [18] Pasqal roadmap and merger with Qu&Co https://pasqal.io/2022/01/11/quantum-startups-pasqal-and-quco-announce-merger-to-leverage-complementary-solutions-for-global-market/ [19] QuEra roadmap https://www.quera.com/ [20] Silcon quantum computing roadmap https://sqc.com.au/ -- 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