Category: Physics
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String Theory and M theory compactifications
This is a post about compactifications in superstring theory and M theory. This post is related to my second Ph.D. project. A little familiarity with the Ricci tensor and the word “gauge group” is assumed but I tried to make it self-contained.
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What is the type I superstring theory?
So we have done a post on type II strings and a post on heterotic strings in the past. Now, let’s do a post on type I strings to cover all 5 known consistent superstring theories.
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D Branes in Type II string theories
Let’s do a small post on D-Branes and their charges. Before starting, we will review some familiar concepts so that it is easy to understand what follows. A very basic understanding of electromagnetism and Quantum Field Theory (QFT) is assumed.
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Heterotic String Theories explained
Why do we have two heterotic theories i.e. SO(32) heterotic and E8 X E8 heterotic? How do we come to this conclusion? I will present some results without derivation because their derivation requires calculations. A very basic understanding of quantum field theory is assumed and it is better if the reader has already read my…
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Symmetries in Physics
Let’s do a popular audience level post about the types of symmetries used in particle physics. I will try to make the explanations as simple as possible without compromising the stuff that I want to explain.
Hassaan Saleem 