Yes. From what I know, I think the mps_optim is the only application supporting “many-body operators". Something similar has already been discussed last year on the mailing list.
Now you find an example in the tutorials folder in the repository: https://alps.comp-phys.org/svn/alps1/trunk/alps/tutorials/mps-example-01-str...
Best regards, Michele
-- ETH Zurich 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 13 Jun 2016, at 10:43, 梁霄 lxxhlb@mail.ustc.edu.cn wrote:
Michele Dolfi, I am currently using DMRG. Are there any differences between mps_optim, sparsediag and dmrg for measuring String Order Parameters?
Xiao Liang
-----Original Messages----- From:"Michele Dolfi" dolfim@phys.ethz.ch Sent Time:2016-06-13 15:14:17 (Monday) To: comp-phys-alps-users@lists.phys.ethz.ch Cc: Subject: Re: [ALPS-users] String order parameters measurements
Which application are you using?
-- ETH Zurich Michele Dolfi Institute for Theoretical Physics HIT G 32.4 Wolfgang-Pauli-Str. 27 8093 Zurich Switzerland
dolfim@phys.ethz.ch mailto:dolfim@phys.ethz.ch www.itp.phys.ethz.ch http://www.itp.phys.ethz.ch/
+41 44 633 78 56 phone +41 44 633 11 15 fax
On Jun 13, 2016, at 4:53 AM, 梁霄 <lxxhlb@mail.ustc.edu.cn mailto:lxxhlb@mail.ustc.edu.cn> wrote:
ALPS users and developers, I am wondering in ALPS how to construct the measurement of String Order Parameter in paper: 2012 New J. Phys. 14 065012. I have tried to measure the operators independently but the result was wrong.
Xiao Liang
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