Computational quantum mechanics software by 
Ciro Santilli 35 Updated 2025-04-18 +Created 2025-04-18
Ciro Santilli 35 Updated 2025-04-18 +Created 2025-04-18- www.youtube.com/watch?v=1Z9wo2CzJO8 "Schrodinger equation solved numerically in 3D" by Tetsuya Matsuno. 3D hydrogen atom, code may be hidden in some paper, maybe
- www.youtube.com/playlist?list=PLdCdV2GBGyXM0j66zrpDy2aMXr6cgrBJA "Computational Quantum Mechanics" by Let's Code Physics. Uses a 1D trinket.io.
- www.youtube.com/watch?v=BBt8EugN03Q Simulating Quantum Systems [Split Operator Method] by LeiosOS (2018)
- www.youtube.com/watch?v=86x0_-JGlGQ Simulating the Quantum World on a Classical Computer by Garnet Chan (2016) discusses how modeling only local entanglement can make certain simulations feasible
Simulation of the time-dependent Schrodinger equation (JavaScript Animation) by Coding Physics (2019)
Source. Source code: github.com/CodingPhysics/Schroedinger. One dimensional potentials, non-interacting particles. The code is clean, graphics based on github.com/processing/p5.js, and all maths from scratch. Source organization and comments are typical of numerical code, the anonymous author is was likely a Fortran user in the past.
A potential change patch in
sketch.js:- potential: x => 2E+4*Math.pow((4*x - 1)*(4*x - 3),2),
+ potential: x => 4*Math.pow(x - 0.5, 2),2025
As evidenced by my Stack Exchange contributions, I love trying out new software to see if it works and how well. I love benchmarking it. And I love documenting what I observed in great detail to help others to choose the best software for them. I also love meeting various new people and understanding what they are up to and how I can help.
- Alice&Bob:
- I'm looking to do a meaningful job in a deeptech field, and quantum computing seems like it could become huge. I've learnt a few basics, and would like to go further with job experience in the area.Salary: 90k.
- jobs.lever.co/alice-bob/b4632e27-cf56-4570-84bb-d56a169d1c43 Senior Software Engineer - Cloud. I could do this. But do I want to.
- Pasqal: careers.pasqal.com/jobs/5817098-software-development-engineer-integration Software Development Engineer Integration
- I'm looking to do a meaningful job in a deeptech field, and quantum computing seems like it could become huge. I've learnt a few basics, and would like to go further with job experience in the area.
I Was a Starter Wife by Justine Musk by Ciro Santilli 35 Updated 2025-04-18 +Created 2025-04-16
Ciro Santilli 35 Updated 2025-04-18 +Created 2025-04-16 Allow your LinkedIn profile to be visible without logging in by Ciro Santilli 35 Updated 2025-04-18 +Created 2025-04-16
Ciro Santilli 35 Updated 2025-04-18 +Created 2025-04-16Is is possible or impossible?
Some threads suggest that there is a setting, but Ciro Santilli can't find settings that make www.linkedin.com/in/cirosantilli/ visible in a incognito window.
Asked by Ciro Santilli:
It surely would be intolerable not to know by Ciro Santilli 35 Updated 2025-04-18 +Created 2025-04-16
Ciro Santilli 35 Updated 2025-04-18 +Created 2025-04-16A beautiful quote fom Edward Titchmarsh:[ref]Ciro Santilli believes that it is perhaps for this reason that simple to state but hard to prove theorems are so attractive.
It can be of no practical use to know that pi is irrational, but if we can know, it surely would be intolerable not to know.
This quote was brought to Ciro Santilli's attention at: www.quantamagazine.org/recounting-the-history-of-maths-transcendental-numbers-20230627/
I have come to realize that a few of the websites do seem to use virtual hosting, i.e. multiple domains per IP, and I put a bit more manual effort into looking at known possible IPs that had a relatively small number of domains in them.
This led either to finding a few new domains, or placing existing domains in the same IP as another domains.
From now on I'll consider any IP with more than two hits to be an "IP range".
The new finds around other pre-existing domains are:
- 199.19.110.7 (theworldnewsfeeds.com):
- 207.150.191.68 (technologypresstoday.com)
- 216.93.248.194 (esmundonoticias.com)
- 216.104.38.110 (all-sport-headlines.com)
Furthermore, I now found new hits on nearby IPs of 209.162.192.49 rastadirect.net which was given by Reuters, thus establishing a new IP range there. Apparently I had simply failed to check IPs around one of the possible reverse IPs for it. The new finds are:
- 209.162.192.44 thejewelofsouthamerica.com
- 209.162.192.51 yellow-chair-report.com
- 209.162.192.57 globalnewsreports.net
- 209.162.192.59 easytravelsite.net
2010 Wayback Machine archive of thejewelofsouthamerica.com
. Source. Full list of newly found screenshots by Ciro Santilli 35 Updated 2025-04-18 +Created 2025-04-15
Ciro Santilli 35 Updated 2025-04-18 +Created 2025-04-15- affairesdumonde.com
- american-historyonline.com
- arborstribune.org
- atthemovies.biz
- aviation-navigation.com
- bookmarksthis.com
- bosniakbusinessnews.com
- cityworldnewsnow.com
- classic-rocktopia.com
- classicalmusic4arab.com
- delacorne.com
- dynamicworldnews.com
- econfutures.com
- efiinvestment.com
- etherealinspirations.net
- european-footballer.com
- focusonbokeh.com
- foodwineandsuch.com
- fuenteneta.com
- garundipost.com
- gazingvoyage.com
- global-headlines.com
- goldeportesnoticias.com
- greek-news.info
- i7diver.com
- ilat-news.com
- internationalwhiskylounge.com
- itechnewstoday.com
- kioni-sailing.com
- large-format-news.com
- luxuryfive.net
- news-unlimited.info
- newsforthetech.com
- newsidori.com
- noticiasdenuestromundo.com
- nrgconsultingandnews.com
- ordenpolicial.com
- pohandakhbar.com
- prebitinvestment.com
- premierstriker.com
- rolling-in-rapids.com
- romulusactualites.com
- russiaupdate.com
- screencentral.info
- sportsman-elite.com
- talkingpointnews.info
- teclafinance.com
- the-golden-rule.info
- the-news-zone.com
- the-tech-mind.com
- theventurenews.info
- todaysportscores.com
- topfootballnewsonline.com
- travel-passage.com
- urbestbod.com
- urouttahere.com
- vejaaeuropa.com
- waronfilmonline.com
- worldfeedstoday.com
- worldnewsandtravel.com
"Sources and methods" seems to be an official NSA terminology to talk about the main categories things that whistleblowers were not supposed to whistleblow.
It came to Ciro Santilli's attention in the Reality film about Reality Winner, and are words she apparently used extensively and which are quoted e.g. at www.theguardian.com/us-news/2022/jul/25/reality-winner-leaked-file-on-russia-election-hacking-because-public-was-being-lied-to
This seems to be a bit like CC BY-NC-SA but with the NC slightly relaxed in which you can use for commercial, just you have to give back.
Pinned article: ourbigbook/introduction-to-the-ourbigbook-project
Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
Intro to OurBigBook
. Source. We have two killer features:
- topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculusArticles of different users are sorted by upvote within each article page. This feature is a bit like:
- a Wikipedia where each user can have their own version of each article
- a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
Figure 1. Screenshot of the "Derivative" topic page. View it live at: ourbigbook.com/go/topic/derivativeVideo 2. OurBigBook Web topics demo. Source. - local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
Figure 2. You can publish local OurBigBook lightweight markup files to either OurBigBook.com or as a static website.
Figure 3. Visual Studio Code extension installation.
Figure 5. . You can also edit articles on the Web editor without installing anything locally. Video 3. Edit locally and publish demo. Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension. 
- Infinitely deep tables of contents:
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact