Course plan:
- Section "Programmer's model of quantum computers"
- look at a Qiskit hello world
- e.g. ours: qiskit/hello.py
- learn about quantum circuits.
- tensor product in quantum computing
- First we learn some quantum logic gates. This shows an alternative, and extremely important view of a quantum computer besides a matrix multiplication: as a circuit. Fundamental subsections:
- quantum algorithms
Other good lists:
- quantumcomputingreport.com/resources/tools/ is hard to beat as usual.
- www.quantiki.org/wiki/list-qc-simulators
- JavaScript
- algassert.com/quirk demo: github.com/Strilanc/Quirk drag-and-drop, by a 2019-quantum-computing-Googler, impressive. You can create gates. State store in URL.
- github.com/stewdio/q.js/ demo: quantumjavascript.app/
Bibliography:
- www.epcc.ed.ac.uk/whats-happening/articles/energy-efficient-quantum-computing-simulations mentions two types of quantum computer simulation:
The most common approach to quantum simulations is to store the whole state in memory and to modify it with gates in a given order
However, there is a completely different approach that can sometimes eliminate this issue - tensor networks
How can a chemical substance be unstable but not flammable? Updated 2025-03-28 +Created 1970-01-01
I can't believe there isn't a YouTube video comparing various substances for each flammability and instability ratings, this would be a huge hit.
This is the true key question: what are the most important algorithms that would be accelerated by quantum computing?
Some candidates:
- Shor's algorithm: this one will actually make humanity worse off, as we will be forced into post-quantum cryptography that will likely be less efficient than existing classical cryptography to implement
- quantum algorithm for linear systems of equations, and related application of systems of linear equations
- Grover's algorithm: speedup not exponential. Still useful for anything?
- Quantum Fourier transform: TODO is the speedup exponential or not?
- Deutsch: solves an useless problem
- NISQ algorithms
Do you have proper optimization or quantum chemistry algorithms that will make trillions?
Maybe there is some room for doubt because some applications might be way better in some implementations, but we should at least have a good general idea.
However, clear information on this really hard to come by, not sure why.
Whenever asked e.g. at: physics.stackexchange.com/questions/3390/can-anybody-provide-a-simple-example-of-a-quantum-computer-algorithm/3407 on Physics Stack Exchange people say the infinite mantra:
Lists:
- Quantum Algorithm Zoo: the leading list as of 2020
- quantum computing computational chemistry algorithms is the area that Ciro and many people are te most excited about is
- cstheory.stackexchange.com/questions/3888/np-intermediate-problems-with-efficient-quantum-solutions
- mathoverflow.net/questions/33597/are-there-any-known-quantum-algorithms-that-clearly-fall-outside-a-few-narrow-cla
IBM 2017 beryllium hydride ground state calculation on a quantum computer Updated 2025-03-28 +Created 1970-01-01
TODO what's the largest molecule done on a classical computer?
- www.ibm.com/blogs/research/2017/09/quantum-molecule/
- www.nature.com/articles/nature23879 "Hardware-efficient variational quantum eigensolver for small molecules and quantum magnets"
- www.sciencemag.org/news/2017/09/quantum-computer-simulates-largest-molecule-yet-sparking-hope-future-drug-discoveries
Funding:
- 2023-01-23 €5 Million
For more china-related stuff see: cirosantilli.com/china-dictatorship/wife
Excerpt of For Whom the Bell Tolls by Ernest Hemingway (1940), slightly adapted for brevity:Related: www.reddit.com/r/OldSchoolCool/comments/hj7bfq/comment/fwkik5v/
"The earth moved," Maria said, not looking at Pilar. "Truly. It was a thing I cannot tell thee.""It never moves more than three times in a lifetime. Did it really move?" Pilar Said."Yes," the girl said. "Truly.""For you, Inglés?" Pilar looked at Robert Jordan. "Don't lie.""Yes," he said. "Truly."
Teresinha performed by Maria Bethânia
. Source. Composed and previously performed by Chico Buarque in 1987: Video "Teresinha by Chico Buarque".
This video has English subtitles, click CC to enable them. This is one of the the best popular Brazilian music (MPB) of all time. A transcribed English translation adapted slightly by Ciro Santilli to be a bit less literal:
The first one came to me as if coming from the flower shop
Brought a stuffed toy, brought an amethyst pin
He told me about his journey and the perks he had
He showed me his watch and called me 'queen'
He found me so undefended that he touched my heart
But he denied me nothing, so, frightened, I said 'no'The second came to me as if coming back from the bar
Brought a bottle of brandy too bitter to swallow
He asked me about my past and sniffed my food
He searched through my drawer and called me 'the lost one'
He found me so undefended that he scratched my heart
But he gave me nothing, so, frightened, I said 'no'The third one arrived like he was arriving from nowhere
He brought me nothing and also asked me nothing
I barely know his name but I understand what he wants
He laid on my bed and called me 'woman'
He arrived very sneakily and before I could say 'no'
He settled inside my heart as its owner
Song of pig by Xiangxiang (2005)
Source. Chinese: 猪之歌 by 香香. Baidu Baike page: baike.baidu.com/item/猪之歌/16181836. A dude wrote the lyrics though: 毛慧 (Mao Hui), but wouldn't have been a hit if he had performed it given the insane gender imbalance in China. Chinese lyrics on mojim: mojim.com/cny104491x1x1.htm. A quick translation:Pig, you have two holes in your nose, and they have snot when you catch a cold
Pig, you have dark eyes, you can't see the edge
Pig, your ears are so big, you can't hear me calling you stupid
Pig, your tail is curled and curled. It turns out that you can't live without it when you run and jump.Pig head, pig brain, pig body, pig tail, a wise toy who is never picky about food
Every day sleep until after three in the afternoon, you never brush your teeth, and you never fightPig, your belly is so bulging, you can tell at a glance that you can't stand the hardships of life
Pig, your skin is so white, you must have been from a rich family in your past life, oh
Legend has it that your ancestor had eight rakes, and it hit a peach blossom criminal.
When you see a beautiful girl, you chuckle, won't blush, and isn't afraid
Marked read speeds up to 150 MB/s
Write speed burning 5 GB Ubuntu ISO from Dell Inspiron 15: 5.4 MB/s
For clean Dell Inspiron 15 3520 cryptocurrenty laptop bootstrap and backup.
In mathematics, a "classification" means making a list of all possible objects of a given type.
Classification results are some of Ciro Santilli's favorite: Section "The beauty of mathematics".
Examples:
- classification of finite simple groups
- classification of regular polytopes
- classification of closed surfaces, and more generalized generalized Poincaré conjectures
- classification of associative real division algebras
- classification of finite fields
- classification of simple Lie groups
- classification of the wallpaper groups and the space groups
The name does not imply regular by default. For regular ones, you should say "regular polytope".
Non-regular description: take convex hull take D + 1 vertices that are not on a single D-plan.
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