# More guides

* [Design principles of operator representations](operators.html.md)
* [Group operator terms: use the operator structure](grouping.html.md)
* [Map operator representations](mappers.html.md)
* [Work with fermionic circuits](circuit.html.md)
* [Generate SqDRIFT circuits](sqdrift.html.md)
* [Generate Krylov time-evolution circuits (SKQD)](skqd.html.md)
* [Transpile fermionic circuits](transpilation.html.md)
* [Synthesize an Evolution gate in fermionic space](fermionic_synthesis.html.md)
* [Optimize Slater determinant preparation](merge_slater_determinant.html.md)
* [Transpile an LUCJ ansatz](lucj.html.md)
* [How this package relates to ffsim](ffsim.html.md)