<html>
<head>
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<p>Hi, <br>
</p>
<p>you can do it in this way but in your parameter file you have to
write :</p>
<p>model['MODEL_LIBRARY'] = 'my_own_models.xml'<br>
</p>
or you can put it wherever you want but in this case :<br>
<br>
model['MODEL_LIBRARY'] = 'path_to_the_xml_file'<br>
<br>
Julien<br>
<br>
<div class="moz-cite-prefix">On 06/02/2017 09:21, Robertson
Esperanza wrote:<br>
</div>
<blockquote
cite="mid:CAKBy94MCF-t5hgEW56cbmZUjJgLrskqSaUx7DRFuXpH1sUri+Q@mail.gmail.com"
type="cite">
<div dir="ltr">When creating a new model file, is it necessary
that the new model file be saved on the same folder of the
default models.xml file?<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Feb 6, 2017 at 3:55 PM, Michele
Dolfi <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:dolfim@phys.ethz.ch" target="_blank">dolfim@phys.ethz.ch</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word">MEASURE_AVERAGE is compute
the average among all sites, i.e. a scalar value.
<div>MEASURE_LOCAL returns a list of measurements on all
sites.</div>
<div><br>
</div>
<div>Best,</div>
<div>Michele</div>
<div><span class=""><br>
<div>
<div
style="color:rgb(0,0,0);font-family:Helvetica;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">
<div>--</div>
<div>ETH Zurich</div>
<div><span style="text-align:-webkit-auto">Dr.</span><span
style="text-align:-webkit-auto"> </span>Michele
Dolfi</div>
<div>Institute for Theoretical Physics</div>
<div>HIT G 32.4</div>
<div>Wolfgang-Pauli-Str. 27</div>
<div>8093 Zurich</div>
<div>Switzerland</div>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="mailto:dolfim@phys.ethz.ch"
target="_blank">dolfim@phys.ethz.ch</a></div>
<div><a moz-do-not-send="true"
href="http://www.itp.phys.ethz.ch"
target="_blank">www.itp.phys.ethz.ch</a></div>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="tel:+41%2044%20633%2078%2056"
value="+41446337856" target="_blank">+41 44
633 78 56</a> phone</div>
<div><a moz-do-not-send="true"
href="tel:+41%2044%20633%2011%2015"
value="+41446331115" target="_blank">+41 44
633 11 15</a> fax </div>
</div>
</div>
<br>
</span>
<div>
<div class="h5">
<div>
<blockquote type="cite">
<div>On 6 Feb 2017, at 08:50, Robertson
Esperanza <<a moz-do-not-send="true"
href="mailto:robbie.esperanza@gmail.com"
target="_blank">robbie.esperanza@gmail.com</a>>
wrote:</div>
<br
class="m_-1402154255285421958Apple-interchange-newline">
<div>
<div dir="ltr">Oh, I forgot to mention that
I'm using mps_optim application. How does
the result of MEASURE_AVERAGE differ from
MEASURE_LOCAL, if let's say I use "n" for
these parameters? Thanks<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Feb 6, 2017
at 3:08 PM, Michele Dolfi <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:dolfim@phys.ethz.ch"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:dolfim@phys.ethz.ch">dolfim@phys.ethz.ch</a></a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px
#ccc solid;padding-left:1ex">
<div style="word-wrap:break-word">Hello,
<div><br>
</div>
<div>Could you please be a bit more
specific about the application you
are running?</div>
<div><br>
</div>
<div>You are right about the local
measurement, but you need
MEASURE_LOCAL, since you want to
value at each site. Since the n_i^2
operator is not yet defined in the
model library, you need to add it
yourself. Basically I would do as
follow:</div>
<div>1. Copy the file models.xml from
ALPS_ROOT/lib/xml/models.xml, where
ALPS_ROOT is the root location of
your alps installation.</div>
<div><br>
</div>
<div>2. Add this definition to your
local copy, it defines the n^2
operator</div>
<div><SITEOPERATOR name=“n_squared"<wbr> site="x"><br>
n(x)*n(x)<br>
</SITEOPERATOR><br>
<br>
</div>
<div>3. In your input parameters you
have now to link to your new model
file.</div>
<div>MODEL_LIBRARY=“path/to/models.<wbr>xml”</div>
<div><br>
</div>
<div>4. And add your measurement</div>
<div>MEASURE_LOCAL[Density^2] =
“ n_squared"</div>
<div><br>
</div>
<div><br>
</div>
<div>Hope this helps.</div>
<div><br>
</div>
<div>Best,</div>
<div>Michele</div>
<div><br>
<div>
<div
style="font-family:Helvetica;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">
<div>--</div>
<div>ETH Zurich</div>
<div><span
style="text-align:-webkit-auto">Dr.</span><span
style="text-align:-webkit-auto"> </span>Michele Dolfi</div>
<div>Institute for Theoretical
Physics</div>
<div>HIT G 32.4</div>
<div>Wolfgang-Pauli-Str. 27</div>
<div>8093 Zurich</div>
<div>Switzerland</div>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="mailto:dolfim@phys.ethz.ch"
target="_blank">dolfim@phys.ethz.ch</a></div>
<div><a moz-do-not-send="true"
href="http://www.itp.phys.ethz.ch/"
target="_blank">www.itp.phys.ethz.ch</a></div>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="tel:+41%2044%20633%2078%2056"
value="+41446337856"
target="_blank">+41 44 633
78 56</a> phone</div>
<div><a moz-do-not-send="true"
href="tel:+41%2044%20633%2011%2015"
value="+41446331115"
target="_blank">+41 44 633
11 15</a> fax </div>
</div>
</div>
<br>
<div>
<blockquote type="cite">
<div>
<div
class="m_-1402154255285421958h5">
<div>On 6 Feb 2017, at
07:26, Robertson Esperanza
<<a
moz-do-not-send="true"
href="mailto:robbie.esperanza@gmail.com"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:robbie.esperanza@gmail.com">robbie.esperanza@gmail.com</a></a>>
wrote:</div>
<br
class="m_-1402154255285421958m_6600635778920913090Apple-interchange-newline">
</div>
</div>
<div>
<div>
<div
class="m_-1402154255285421958h5">
<div dir="ltr">
<div>Hello,<br>
<br>
I only started
studying many-body
physics, so there
might be gaps in my
knowledge. When using
the
MEASURE_CORRELATION,
why does the
measurement goes for
only site i<j, is
it because there will
be "blowing up"? <br>
<br>
Alternatively, to
measure for i=j, i
think I could use
MEASURE_AVERAGE, of
let's say (n_i)^2
where n - n_up +
n_down. How could I
define such
measurement, where you
use an operator
successively? Thank
you for replying<br>
<br>
</div>
Robertson Esperanza<br>
</div>
<br>
<br>
</div>
</div>
----<br>
Comp-phys-alps-users Mailing
List for the ALPS Project<br>
<a moz-do-not-send="true"
href="http://alps.comp-phys.org/"
target="_blank">http://alps.comp-phys.org/</a><br>
<br>
List info: <a
moz-do-not-send="true"
href="https://lists.phys.ethz.ch//listinfo/comp-phys-alps-users"
target="_blank"><a class="moz-txt-link-freetext" href="https://lists.phys.ethz.ch//li">https://lists.phys.ethz.ch//li</a><wbr>stinfo/comp-phys-alps-users</a><br>
Archive: <a
moz-do-not-send="true"
href="https://lists.phys.ethz.ch//pipermail/comp-phys-alps-users"
target="_blank"><a class="moz-txt-link-freetext" href="https://lists.phys.ethz.ch//pi">https://lists.phys.ethz.ch//pi</a><wbr>permail/comp-phys-alps-users</a><br>
<br>
Unsubscribe by writing a mail
to <a moz-do-not-send="true"
href="mailto:comp-phys-alps-users-leave@lists.phys.ethz.ch"
target="_blank">comp-phys-alps-users-leave@lis<wbr>ts.phys.ethz.ch</a>.</div>
</blockquote>
</div>
<br>
</div>
</div>
<br>
<br>
<br>
----<br>
Comp-phys-alps-users Mailing List for
the ALPS Project<br>
<a moz-do-not-send="true"
href="http://alps.comp-phys.org/"
rel="noreferrer" target="_blank">http://alps.comp-phys.org/</a><br>
<br>
List info: <a moz-do-not-send="true"
href="https://lists.phys.ethz.ch//listinfo/comp-phys-alps-users"
rel="noreferrer" target="_blank">https://lists.phys.ethz.ch//li<wbr>stinfo/comp-phys-alps-users</a><br>
Archive: <a moz-do-not-send="true"
href="https://lists.phys.ethz.ch//pipermail/comp-phys-alps-users"
rel="noreferrer" target="_blank">https://lists.phys.ethz.ch//pi<wbr>permail/comp-phys-alps-users</a><br>
<br>
Unsubscribe by writing a mail to <a
moz-do-not-send="true"
href="mailto:comp-phys-alps-users-leave@lists.phys.ethz.ch"
target="_blank">comp-phys-alps-users-leave@lis<wbr>ts.phys.ethz.ch</a>.<br>
</blockquote>
</div>
<br>
</div>
<br>
<br>
----<br>
Comp-phys-alps-users Mailing List for the ALPS
Project<br>
<a moz-do-not-send="true"
href="http://alps.comp-phys.org/"
target="_blank">http://alps.comp-phys.org/</a><br>
<br>
List info: <a moz-do-not-send="true"
href="https://lists.phys.ethz.ch//listinfo/comp-phys-alps-users"
target="_blank">https://lists.phys.ethz.ch//<wbr>listinfo/comp-phys-alps-users</a><br>
Archive: <a moz-do-not-send="true"
href="https://lists.phys.ethz.ch//pipermail/comp-phys-alps-users"
target="_blank">https://lists.phys.ethz.ch//<wbr>pipermail/comp-phys-alps-users</a><br>
<br>
Unsubscribe by writing a mail to <a
moz-do-not-send="true"
href="mailto:comp-phys-alps-users-leave@lists.phys.ethz.ch"
target="_blank">comp-phys-alps-users-leave@<wbr>lists.phys.ethz.ch</a>.</div>
</blockquote>
</div>
<br>
</div>
</div>
</div>
</div>
<br>
<br>
<br>
----<br>
Comp-phys-alps-users Mailing List for the ALPS Project<br>
<a moz-do-not-send="true" href="http://alps.comp-phys.org/"
rel="noreferrer" target="_blank">http://alps.comp-phys.org/</a><br>
<br>
List info: <a moz-do-not-send="true"
href="https://lists.phys.ethz.ch//listinfo/comp-phys-alps-users"
rel="noreferrer" target="_blank">https://lists.phys.ethz.ch//<wbr>listinfo/comp-phys-alps-users</a><br>
Archive: <a moz-do-not-send="true"
href="https://lists.phys.ethz.ch//pipermail/comp-phys-alps-users"
rel="noreferrer" target="_blank">https://lists.phys.ethz.ch//<wbr>pipermail/comp-phys-alps-users</a><br>
<br>
Unsubscribe by writing a mail to <a moz-do-not-send="true"
href="mailto:comp-phys-alps-users-leave@lists.phys.ethz.ch">comp-phys-alps-users-leave@<wbr>lists.phys.ethz.ch</a>.<br>
</blockquote>
</div>
<br>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">
----
Comp-phys-alps-users Mailing List for the ALPS Project
<a class="moz-txt-link-freetext" href="http://alps.comp-phys.org/">http://alps.comp-phys.org/</a>
List info: <a class="moz-txt-link-freetext" href="https://lists.phys.ethz.ch//listinfo/comp-phys-alps-users">https://lists.phys.ethz.ch//listinfo/comp-phys-alps-users</a>
Archive: <a class="moz-txt-link-freetext" href="https://lists.phys.ethz.ch//pipermail/comp-phys-alps-users">https://lists.phys.ethz.ch//pipermail/comp-phys-alps-users</a>
Unsubscribe by writing a mail to <a class="moz-txt-link-abbreviated" href="mailto:comp-phys-alps-users-leave@lists.phys.ethz.ch">comp-phys-alps-users-leave@lists.phys.ethz.ch</a>.</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
__________________________________
DESPRES Julien
Ph.D. student
Center for Theoretical Physics
Quantum Matter Theory team
Ecole Polytechnique
91128 Palaiseau Cedex
France, EU
Office : 00.10.06 (ground floor)
Phone : +33 1 64 33 42 81
Laboratoire Charles Fabry
Atom Optics group
Institut d'Optique Graduate School
2 Avenue Augustin Fresnel
91127 Palaiseau Cedex
France, EU
Office : R2.29 (1st floor)
Phone: +33 1 64 53 33 49
__________________________________
</pre>
</body>
</html>