!nostupidquestions is a community dedicated to being helpful and answering each others' questions on various topics.
The rules for posting and commenting, besides the rules defined here for lemmy.world, are as follows:
Rule 1- All posts must be legitimate questions. All post titles must include a question.
All posts must be legitimate questions, and all post titles must include a question. Questions that are joke or trolling questions, memes, song lyrics as title, etc. are not allowed here. See Rule 6 for all exceptions.
Rule 2- Your question subject cannot be illegal or NSFW material.
Your question subject cannot be illegal or NSFW material. You will be warned first, banned second.
Rule 3- Do not seek mental, medical and professional help here.
Do not seek mental, medical and professional help here. Breaking this rule will not get you or your post removed, but it will put you at risk, and possibly in danger.
Rule 4- No self promotion or upvote-farming of any kind.
That's it.
Rule 5- No baiting or sealioning or promoting an agenda.
Questions which, instead of being of an innocuous nature, are specifically intended (based on reports and in the opinion of our crack moderation team) to bait users into ideological wars on charged political topics will be removed and the authors warned - or banned - depending on severity.
Rule 6- Regarding META posts and joke questions.
Provided it is about the community itself, you may post non-question posts using the [META] tag on your post title.
On fridays, you are allowed to post meme and troll questions, on the condition that it's in text format only, and conforms with our other rules. These posts MUST include the [NSQ Friday] tag in their title.
If you post a serious question on friday and are looking only for legitimate answers, then please include the [Serious] tag on your post. Irrelevant replies will then be removed by moderators.
Rule 7- You can't intentionally annoy, mock, or harass other members.
If you intentionally annoy, mock, harass, or discriminate against any individual member, you will be removed.
Likewise, if you are a member, sympathiser or a resemblant of a movement that is known to largely hate, mock, discriminate against, and/or want to take lives of a group of people, and you were provably vocal about your hate, then you will be banned on sight.
Rule 8- All comments should try to stay relevant to their parent content.
Rule 9- Reposts from other platforms are not allowed.
Let everyone have their own content.
Rule 10- Majority of bots aren't allowed to participate here.
Our breathtaking icon was bestowed upon us by @Cevilia!
The greatest banner of all time: by @TheOneWithTheHair!
PBS SpaceTime has a lot of good videos that slowly broach the subject
https://youtube.com/@pbsspacetime?
Viascience series have a little more of the math
Videos on Quantum Dynamics https://youtube.com/playlist?list=PL193BC0532FE7B02C
Videos on Quantum Field Theory https://youtube.com/playlist?list=PLsp_BbZBIk_6_5pi9tHHmoVJzjqpfBkgJ
Thank you
I also vote for PBS Space Time
matt is one of the greats in science communication
For a popular level explanation, try Feynman's "QED" lecture series,
https://en.wikipedia.org/wiki/QED:_The_Strange_Theory_of_Light_and_Matter
A more technical understanding is a lot more work and I never got anywhere near this level, the "theoretical minimum":
https://theoreticalminimum.com/
Actually for the stuff you are asking about, the theoretical minumum isn't really enough, but it's a start. Here's some more:
Thank you.
Stanford has a lot of freely available information that might be useful for you to study.
The book "Quantum field theory for the gifted amateur" is really good. It's helped me understand quantum fields a lot better, and I work with quantum mechanics every day.
What's the intended audience? Considering that you do Quantum mechanic daily, I assumed you studied physics and knew QED and QCD but forgot about it?
Got my master in theoretical physics 20 years ago, moved to experimental physics and now do engineering and applied physics , so I cannot anymore decipher my QCD notes
From its own cover,
It is written by experimental physicists and aimed to provide the interested amateur with a bridge from undergraduate physics to quantum field theory. The imagined reader is a gifted amateur possessing a curious and adaptable mind looking to be told an entertaining and intellectually stimulating story, but who will not feel patronized if a few mathematical niceties are spelled out in detail.
This might sound pretty casual, but it gets into all the math of it, with an aim at practical use.
Nice, I`ll check it out, feel somehow frustrated to have forgotten all these stuff
According to "The Hitchhiker's Guide to the Galaxy", the exact procedure to learn quantum field theory :
"it would be much easier to get on a Vogon ship"
don't forget to bring your towel!
I'd really recommend going through the basics about learning QM. Specifically: classical mechanics, a very good stats & probability math course, calc prereqs, intro to QM, intro to thermal/stat physics, maybe an atomic course, intro chem course. I'm not sure of the exact steps, but as a physics undergrad major, it'll "click" after a certain amount of prereqs and if you need any help, feel free to PM me and I'll gladly be of assistance (as far as I can remember, at least).
It's also really important to remember that QM is really a formalized algebra of probability/stats, so it's really really important to get a good grasp of that. QFT and all that comes after understanding the basics. It's a fuck ton of work, but I think it's rewarding.
Thanks. I have a good understanding of calculus and physics. I did take statistics like 30 years ago so probably very fuzzy now. Any specialities to focus on before I get started in QM?
Nah, just the basics is fine. I would recommend Griffith's and then moving on to Shankar.
If you remember linear algebra and know what's a hilbert spaci, you`re good to go.
It's a solid math foundation but any second year student in math/physics/mechanics get it
Read Sean Carroll's new Biggest Ideas pt 2 book
I've really been enjoying the podcast series Crash Course : The Universe. It's helped me to understand what quantum fields are a little better. It's probably not going inti much depth, but I love the way John Green hosts it, and I'm having a blast!
I'll need to check that out, I absolutely loved the Crash Course World History he did. Thanks for the heads up!
I gotchu