Dear Axel,
Infinite systems are not supported in the current ALPS applications.
However some people in our group worked on infinite algorithm based on ALPS.
For example high temperature series expansion as well as perturbative series expansion by Andreas Hehn. http://dx.doi.org/10.1016/j.cpc.2016.09.003 http://dx.doi.org/10.1016/j.cpc.2016.09.003
For infinite MPS there is also some work by Juan Osorio.
Best regards, Michele
-- ETH Zurich Dr. Michele Dolfi Institute for Theoretical Physics HIT G 32.4 Wolfgang-Pauli-Str. 27 8093 Zurich Switzerland
dolfim@phys.ethz.ch www.itp.phys.ethz.ch
+41 44 633 78 56 phone +41 44 633 11 15 fax
On 18 Jan 2017, at 18:16, Axel Gagge axel.gagge@fysik.su.se wrote:
I have tried out using DMRG with an infinite lattice. I could not find any information about how to do infinite DMRG so I just assumed that I could define an infinite lattice graph and work with that.... However when I try this I get the error: "bad lexical cast: source type value could not be interpreted as target". This was for a 1d lattice graph of one site with one unit cell and the spin model. I have included the files I used along with this email just in case...
Is this the correct way to approach this or is there any other way to get out iDMRG calculations?
Best /Axel PhD Student Stockholm University <my_models.xml><my_lattices.xml><Test of iDMRG.ipynb>
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