Cell choice and long range correlations in a 2D iDMRG calculation
Posted: 13 Jul 2022, 04:27
Hi,
I am new to the field. I am wondering how we choose the "Lx" parameter in a 2D iDMRG calculation. It seems like in the literature there are not much discussion on it. For example in https://journals.aps.org/prb/pdf/10.110 ... .94.121111 Ly is reported but Lx is not specified. Is this because we always assume translational invariance along the x-axis so Lx=1? If this is the case, how do we compute the NN correlations beyond the x=0 cell such as those shown in Fig. 1 in the above work or even long-range correlations in Tenpy? Also, is it possible to compute the entanglement spectrum along a cut at some finite x value with Lx=1 only?
Many thanks!
Yang-hao
I am new to the field. I am wondering how we choose the "Lx" parameter in a 2D iDMRG calculation. It seems like in the literature there are not much discussion on it. For example in https://journals.aps.org/prb/pdf/10.110 ... .94.121111 Ly is reported but Lx is not specified. Is this because we always assume translational invariance along the x-axis so Lx=1? If this is the case, how do we compute the NN correlations beyond the x=0 cell such as those shown in Fig. 1 in the above work or even long-range correlations in Tenpy? Also, is it possible to compute the entanglement spectrum along a cut at some finite x value with Lx=1 only?
Many thanks!
Yang-hao