# quantum equation symbols

by electrogluon
Tags: equation, quantum, symbols
 P: 12 I have a good understanding of general quantum physics but not so much of an understanding of the mathmatics around equations, such as the equations on wikipeadia under the quantum physics page to understand any of the equations you much first know what the symbols in the equation means can anyone suggest a website that may have some form of index for these symbols on
 Sci Advisor HW Helper P: 4,739 There is no 100% standard notation. Can you tell us exactly which wiki page you are wondering about? Almost all wiki pages have explanations of formulas. And who can you understand quantum physics with no mathametics? :P
 P: 12 for example i would like to understand the working of the Dirac notation but there other pages which don,t have any explanation to the the symbols used such as quantum field theory page thankyou for helping
HW Helper
P: 4,739

## quantum equation symbols

But everything is introduced in that wiki-article, there is nothing more to add. It is just what you would find in an ordinary QM textbook such as Sakurai.

There are not so many equations in the QFT page, just some fields etc.
 Sci Advisor HW Helper Thanks P: 26,167 Hi electrogluon! Welcome to PF! Type out the symbols you don't understand, and then we can help!
P: 1,705
 Quote by electrogluon I have a good understanding of general quantum physics but not so much of an understanding of the mathmatics around equations, such as the equations on wikipeadia under the quantum physics page to understand any of the equations you much first know what the symbols in the equation means can anyone suggest a website that may have some form of index for these symbols on
??? how does that even make sense ???
 P: 12 $$\sum$$ "sum" $$\phi$$ "phi" $$\prod$$ "prod" these are the main symbols i don,t understand but also i don,t understand what the doots mean inbetween symbols like in this equation
 Sci Advisor HW Helper Thanks P: 26,167 ok … ∑ means the sum of the thing after the ∑, over all possible values of the variable (in your example. over all values of p in the set SN) that big π is the same, except it means the product, not the sum (so n! = bigπ(i) over i ≤ n) φ is just the usual syymbol for a wave-function … it's an unknown, like "x" … you could use any symbol, but it's easier to read if everybody uses the same one and the dots mean φ1, φ2, φ3, and so on until you get to φN ) Anything else?
 P: 12 thankyou for explaining it you've helped alot with my research

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