Operator difinition - Comp-phys-alps-users

2 Mar 2009

      Hi Dear,
...
Thank you very much for your consideration. yes my model mixes states
with different Sz.
let me know DMRG works with complex vectors or not? and Can I change
the basis which DMRG works in it?
Thanks a lot
Mohammad.
On Mon, Mar 2, 2009 at 2:30 PM,
comp-phys-alps-users-request@phys.ethz.chwrote:
...
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Today's Topics:

Operator difinition (zhian asadzadeh)
Re: Operator difinition (Adrian E. Feiguin)

Message: 1
Date: Sun, 1 Mar 2009 15:37:58 +0330
From: zhian asadzadeh zhian.asadzadeh@gmail.com
Subject: [ALPS-users] Operator difinition
To: comp-phys-alps-users@phys.ethz.ch
Message-ID:
       89e5d6760903010407m44b1729raa91afa47e962e18@mail.gmail.com
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Hi Dear,
Thank you very much for your consideration. yes my model mixes states with
different Sz.
let me know DMRG works with complex vectors or not? and Can I change the
basis which DMRG works in it?
Thanks a lot
Mohammad.
On Sun, Mar 1, 2009 at 2:30 PM,
comp-phys-alps-users-request@phys.ethz.chwrote:
...
Send Comp-phys-alps-users mailing list submissions to
       comp-phys-alps-users@phys.ethz.ch
To subscribe or unsubscribe via the World Wide Web, visit
https://webmail.phys.ethz.ch/mailman/listinfo/comp-phys-alps-users
...
or, via email, send a message with subject or body 'help' to
       comp-phys-alps-users-request@phys.ethz.ch
You can reach the person managing the list at
       comp-phys-alps-users-owner@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:

Operator definition (zhian asadzadeh)
Re: Operator definition (Adrian E. Feiguin)

Message: 1
Date: Sat, 28 Feb 2009 15:11:34 +0330
From: zhian asadzadeh zhian.asadzadeh@gmail.com
Subject: [ALPS-users] Operator definition
To: comp-phys-alps-users@phys.ethz.ch
Message-ID:
       89e5d6760902280341r7ca16b5fm506e562c4f043c64@mail.gmail.com
Content-Type: text/plain; charset="iso-8859-1"
Hi  All,
I am using DMRG for my problem,  I need to calculate expectation value of
Y
...
component of Spin operator (Sy) , As a result, I need to define it in the
model.xml file. How I can define it? I tried with
Sy(i)=1/(2*sqrt(-1))*(Splus(i)-Sminus(i)), but I got  incorrect results.
I
...
will be very appreciate if someone could help me?
Thank you very much,
Mohammad.