March 2013 - Comp-phys-alps-users

Re: [ALPS-users] Comp-phys-alps-users Digest, Vol 84, Issue 1
by Bo-Nan JIANG 04 Mar '13

04 Mar '13

Hi,Matthias Maybe the reason is that I am running ALPS in the windows XP operating system. So, the following question is if I program ALPS in XML, how to make it run in a windows operating system? Oh, by the way, though some function of ALPS is disable in the windows, the ED and DMRG are good, so let's just focus on these two. Bo-Nan 2013/3/3 <comp-phys-alps-users-request(a)lists.phys.ethz.ch> > Send Comp-phys-alps-users mailing list submissions to > comp-phys-alps-users(a)lists.phys.ethz.ch > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.phys.ethz.ch/listinfo/comp-phys-alps-users > or, via email, send a message with subject or body 'help' to > comp-phys-alps-users-request(a)lists.phys.ethz.ch > > You can reach the person managing the list at > comp-phys-alps-users-owner(a)lists.phys.ethz.ch > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Comp-phys-alps-users digest..." > > > Today's Topics: > > 1. how to check a lattice graph in python (Bo-Nan JIANG) > 2. Re: how to check a lattice graph in python (Matthias Troyer) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 3 Mar 2013 15:58:26 +0800 > From: Bo-Nan JIANG <bonanjiang(a)gmail.com> > To: "comp-phys-alps-users(a)lists.phys.ethz.ch" > <comp-phys-alps-users(a)lists.phys.ethz.ch> > Subject: [ALPS-users] how to check a lattice graph in python > Message-ID: > < > CADqUQBO4onmxZyN-g6WDUCc8-GO9q-GByYA5G55SjHonj0sYYg(a)mail.gmail.com> > Content-Type: text/plain; charset="gb2312" > > Dear all, > It is well known that to check a lattice graph in Linux, I shall type > "printgraph". But, the question is when I program in the IDLE of python, > how can I realize the same function? > > ?? > > -- > Stay foolish,Stay hungry. >

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Vertex,edge and operator
by Bo-Nan JIANG 04 Mar '13

04 Mar '13

Hi,all This is my interpretation of the relationship between vertex, edge and operator. Am I right? Considering 1D Kondo-Heisenberg model, for example: (1) I shall have two types of vertices - spin and fermion; (2) Three types of edges - fermion to fermion, fermion to spin and spin to spin (considering superexchange interaction between spins); (3) For operators, I shall have - type0 fermion_hop(i,j) related to fermion to fermion edge, type1 exchange(i,j) related to fermion to spin (Kondo-exchange interaction) and type2 exchange(i,j) (superexchange); If I am right, does that mean the number of types of bond operators should be the same as the number of types of edges defined in the unitcell? The other question is: in the unitcell of this simple 1D Kondo-Heisenberg model, I have two-type vertices and three different types of edges, but I do not define the coordinates as your online example "A complex example" in section "How to specify graphs corresponding to a lattice with a unit cell", then is the unitcell which I define 1D or 2D? I think it is 2D, am I right? Bo-Nan -- Stay foolish,Stay hungry.

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how to check a lattice graph in python
by Bo-Nan JIANG 03 Mar '13

03 Mar '13

Dear all, It is well known that to check a lattice graph in Linux, I shall type "printgraph". But, the question is when I program in the IDLE of python, how can I realize the same function? 伯楠 -- Stay foolish,Stay hungry.

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