A. Zee, Quantum Field Theory in a Nutshell · Problem VII.7.7
Field Theory Redux
Physics — QFT
Problem
If you want to grow up to be a string theorist, you need to be familiar with the Dirac equation in various dimensions but especially in 10. As a warm up, study the Dirac equation in 2-dimensional spacetime. Then proceed to study the Dirac equation in 10-dimensional spacetime.