One tight-binding Hamiltonian, every observable: bands, DOS, optical and Hall conductivity, topology, NEGF transport, magnetic fields and sparse solvers - every physics claim pinned to a closed-form test
DMRGPy is a Python library to compute quasi-one-dimensional spin chains and fermionic systems using matrix product states with DMRG as implemented in ITensor. Most of the computations can be performed both with DMRG and exact diagonalization for small systems, which allows one to benchmark the results.
eMaTe can estimate the spectral density and trace functions even in matrices or graphs (undirected or directed) with million of nodes. (kernel polynomial method and SLQ)
