Update kagome #4
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Added Gell-Mann matrices
Improve the energy evaluation. Add the equivalent expression of 2-site permutation using the quadratic Casimir operator of su(3).
Express 2-site permutation in terms of su3 generators.
Spin-1 BBH model with next nearest neighbor interactions on the square lattice. Add the feature of combing a base Hamiltonian (self designed) and a target Hamiltonian (true Hamiltonian) together.
To be consistent with kagome.py, trace1x1_kagome() -> trace1x1_dn_kagome()
Fixed the bug in energy_1site function
Add the method boundary_spectrum(n_site=2, top_n=27) which calculates the spectrum of the edge that is built by the environmental tensor T.
Update boundary_spectrum(env, n_site, top_n): env - environment tensors; n_site - number of T tensors; top_n - number of leading eigenvalues to compute
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Update boundary_spectrum() in ctmrg_kagome.py |
Calculate correlation functions along (0, 1) (0th column) and (1, 0) (1st column) directions and the transfer operator spectrum (in order to get the correlation lengths)
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Update the kagome-related code.