TeNPy Forum

Hi Johannes, I think that the result is wrong by making a comparison with this article: https://doi.org/10.1103/PhysRevLett.118.157602 In this case they are using GFMC to simulate a system of one or more chains and calculate the quantity described above. In my case it seems to me that I continue to ...

Hello, I'm trying to calculate the expectation value of the charge parity operator. I'm working with the Bose-Hubbard model and in 1D I'm able to correctly compute the expectation value of the operator O(r) = \prod_{i=0}^{r-1} \exp(i\pi(n_{i}-1)) as product of single site operators. The problem aris...