No problem! As long as you have a background with some second quantization you should be fine. If you really want to understand the kitaev model, I would start with the original paper:
https://arxiv.org/abs/cond-mat/0010440
Then, maybe work through a little project:
1. start with the real space Hamiltonian and Fourier transform into momentum space, using periodic boundary conditions in x and y; perform a Bogoliubov transformation and diagonalize to get an expression for the dispersion relation. Then try to find:
- The spectrum E(k)
- The density of states D(E)
- The wavefunctions (eigenvectors)
3. Now make the chain finite (use the real space model) and solve numerically (simple MATLAB eig(H) type function will do the trick). You should find
- The spectrum E(k)
- The density of states D(E)
- The wavefunctions
4. Reflect on the comparison between the two cases.
5. Also take a look at the review
https://arxiv.org/pdf/1202.1293.pdf
and use it's suggestions to calculate the Chern number, which will give you some insight into topology. The best way to learn this stuff is to really push through the math!