Math Needed to Study Physics of Loop QG, ST, QED/CD & GR

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To study the physics of loop quantum gravity, string theory, quantum electrodynamics, quantum chromodynamics, and general relativity at a basic level, a solid foundation in calculus and differential equations is essential. Elementary textbooks for each subject can provide the necessary mathematical background, with recommended texts including Griffiths for particle physics, Zwiebach for string theory, and Carroll or Schutz for general relativity. While loop quantum gravity lacks a widely recognized elementary text, a strong grasp of general relativity and quantum field theory is crucial for foundational understanding. Familiarity with derivatives, integrals, differential equations, complex numbers, and basic linear algebra is beneficial, though advanced topics like number theory, rings, and fields are not required at the basic level.
greghouse
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Hi! This is a question for the physicists. What types of math do I need to study the physics of ... let's say loop quantum gravity, string theory, quantum electro dynamics/ chromodynamics and general relativity on the basic level?

Tnx
 
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Notice he's asking on a basic level. At least number theory is not required on a basic level.

My advice would be to pick up elementary textbooks on each of these subjects and skim through them to see what you need. In some cases, the math you need will be covered in the book itself.

For instance, check out Griffiths for particle physics, Zwiebach for string theory, for quantum field theory, I don't know what the most basic text is, for general relativity, there are many choices, two that come to mind are Carroll and Schutz. Loop quantum gravity is less popular a theory, so I doubt there is an elementary text about that. I suspect a strong understanding of general relativity and quantum field theory is required for even the most elementary study.
 
The foundation is calculus, and then differential equations.
 
greghouse said:
What types of math do I need

What math do you know already?
 
jtbell said:
What math do you know already?

It's hard to compare the swedish math education to the american. I don't know how much calculus I know for instance compared to what year of college/ high school in US. But derivatives, integrals, differential equation, complex numbers (don't know if what i read qualifies as complex analysis), very basic linear algebra, three-variable calculus... Stuff like that. I don't, for instance, know what rings and fields are.
 
Hey, I am Andreas from Germany. I am currently 35 years old and I want to relearn math and physics. This is not one of these regular questions when it comes to this matter. So... I am very realistic about it. I know that there are severe contraints when it comes to selfstudy compared to a regular school and/or university (structure, peers, teachers, learning groups, tests, access to papers and so on) . I will never get a job in this field and I will never be taken serious by "real"...
Yesterday, 9/5/2025, when I was surfing, I found an article The Schwarzschild solution contains three problems, which can be easily solved - Journal of King Saud University - Science ABUNDANCE ESTIMATION IN AN ARID ENVIRONMENT https://jksus.org/the-schwarzschild-solution-contains-three-problems-which-can-be-easily-solved/ that has the derivation of a line element as a corrected version of the Schwarzschild solution to Einstein’s field equation. This article's date received is 2022-11-15...
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