Quantum Error Correction is a core linchpin for making Quantum systems stable and operational. Check out this post in the TechAptitude newsletter that outlines current quantum error correction mechanisms. https://techaptitude.substack.com/p/quantum-error-correction?r=vn8b8 #Quantum #QuamtumComputing #QEC #ErrorCorrection

"Physicists create long-sought topological quantum states" -- Exotic particles called #nonabelions could fix the error problem of a #quantumcomputer -- 2023-05-09, open access.

This popular version by Davide [Castelvecchi] at `nature.com' is about an `arxiv.org' prerelease by Mohsin [Iqbal] et al. which offers 63 references and has an appendix for mathematical models. In my opinion the combination of both sources delivers (1) a comprehensible view of the currrent state of #quamtumcomputing and (2) the original to dig deeper.

Another popular view of the issue is the short blog entry "Weird particle that remembers its past discovered by quantum computer" by Alex [Wilkins] at `newscientist.com'. It delivers the tangible context of memory. And adds words of caution: the researchers only simulated the particle, they didn't create it. While the CEO of Quantinuum counters that for quasiparticles simulation is real. Feels kind of esoteric and might bring up discussions about the Copenhagen interpretation. Fine.

But what about the affiliation to the German quantum computer company Quantinuum, and its sister at Broomfield, CO? It can be derived from 15 company related authors plus two from #Harvard, MA, and one from the CIT, CA. Is the paper #science or advertisement? What was the intention for the involvement of the three outliers?

Another entry at the same `nature.com' issue by Michele [Catanzaro] called "Saudi universities entice top scientists to switch affiliations - sometimes with cash" shows how affiliation works if author distributions aren't an obvious gift for the investigation of scientific reality. The subtitle or abstract says that "Some institutions arrange for highly cited researchers to change their main affiliations, which boosts their position in global university rankings."

It remains unsolved if `nature.com', not only affiliated but hard-wired to #springer, applies some control mechanisms when they offer some articles as #openaccess, others behind a #paywall. They aren't as greedy as #elsevier, are they? I think I'm confused.

This toot was ascii [exported] from a section of an #orgmode file and posted via [mastodon.el]. See this [toot] for the reason of this effort.

[Castelvecchi] <https://www.nature.com/articles/d41586-023-01574-0>

[Iqbal] <https://arxiv.org/abs/2305.03766>

[Wilkins] <https://www.newscientist.com/article/2372659-weird-particle-that-remembers-its-past-discovered-by-quantum-computer/>

[Catanzaro] <https://www.nature.com/articles/d41586-023-01523-x>

[exported] <https://orgmode.org/manual/Exporting.html>

[mastodon.el] <https://codeberg.org/martianh/mastodon.el>

[toot] <https://c.im/@pjs/110196367862030554>