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- 03 May 2022, 14:00
- Forum: HowTos and FAQ for TeNPy
- Topic: Alternating Heisenberg coupling at infinite chain
- Replies: 4
- Views: 3589
Alternating Heisenberg coupling at infinite chain
Hi, I wanted to implement infinite DMRG to solve an alternating Heisenberg chain with nearest neighbour couplings J_ on the even and J on the odd sites. I created a CouplingModel class and used self.add_coupling([J_, J],0,"Sigmaz",0,"Sigmaz",[1]) self.add_coupling([J_,J], 0,"...