Search found 5 matches

by shaktiman
10 Jun 2021, 21:25
Forum: HowTos and FAQ for TeNPy
Topic: Bug in PurificationApplyMPO for a 2-d honeycomb lattice model
Replies: 0
Views: 19

Bug in PurificationApplyMPO for a 2-d honeycomb lattice model

Dear Tenpy developers I was playing around with purification method for Finite temperature on a 2-d lattice Kitaev Honeycomb model. I tried following checks for my model. 1.) I checked the energy of model at infinite temperature which comes out to be zero, which is correct also(as trace of hamiltoni...
by shaktiman
09 Jun 2021, 07:04
Forum: HowTos and FAQ for TeNPy
Topic: [RESOLVED] Issue in purification method (normalization of temperature and/or timescales?)
Replies: 5
Views: 145

Re: [RESOLVED] Issue in purification method (normalization of temperature and/or timescales?)

Hi, I guess the issue is with routine PurificationApplyMPO, it works fine with one d model, but fails for a model on 2d lattice. I tried following checks for my model. 1.) I checked the energy of model at infinite temperature which comes out to be zero, which is correct also. 2.) But at small \beta ...
by shaktiman
08 Jun 2021, 05:11
Forum: HowTos and FAQ for TeNPy
Topic: [RESOLVED] Issue in purification method (normalization of temperature and/or timescales?)
Replies: 5
Views: 145

Re: [RESOLVED] Issue in purification method (normalization of temperature and/or timescales?)

Hi I was playing around with Kitaev model on Honeycomb lattice. And checking the efficacy of Purification method for calculating finite temperature expectation values of a conserved quantity of Kitaev model, which is Wilson loop flux (W_p) operator(product of outward spin operator on Hexagon) which ...
by shaktiman
06 Jun 2021, 15:17
Forum: HowTos and FAQ for TeNPy
Topic: [RESOLVED] Issue in purification method (normalization of temperature and/or timescales?)
Replies: 5
Views: 145

Re: [RESOLVED] Issue in purification method (normalization of temperature and/or timescales?)

Hi Since you tried this method, I had a question. I was playing around on this purification method by implementing it on Kitaev model. I tried to evaluate the flux expectation values at different beta ranging from zero to lets say 30. Using Exact diagonalization, I see flux value reaches one(it shou...
by shaktiman
19 Apr 2020, 20:12
Forum: HowTos and FAQ for TeNPy
Topic: code issue TFI2D model implementation
Replies: 1
Views: 3547

code issue TFI2D model implementation

Hi I am new to tenpy package and tried to evaluate in 2D transverse field ising model and implemented code is here. But i am getting bug in this code. Can someone help me to fix the bug. Thanks import numpy as np from tenpy.networks.mps import MPS from tenpy.algorithms import dmrg from tenpy.models....