TeNPy Forum

I currently trying to simulate cooling of purified spinrings with s=1.5. As one can probaly tell this calculation is quiet costly and increase to high calculation times around the length L= 10. Now i am trying to figure out how to improve it further numerical. As far as I can tell I already use the ...

Ah okay so for example for the 0 site i would add contr = npc.tensordot(contr, contr, axes=[ 'q', 'q*' ]) in addition to the previos p leg contraction and same further on for B ? Since the contraciton with the W's only happens on the physical legs p and all that gets added new are the virtual legs q...

Hi there, I am currently using TenPy to try to calculate thermodynamic observables for bigger yet finite systems. For the first test I wanted to do some smaller ones to test all tools. There I noticed that the MPO.variance method does not work for "non standard MPS" I checked the code and ...