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<p>Thank you. My idea was to use it to find critical exponents of my models though finite entanglement/bond dimension scaling at the quantum critical point, but I can find ways around it as you do in the paper...<br>
</p>
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</p>
<p>Many thanks,<br>
</p>
<p>Axel<br>
</p>
<p><br>
</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>Från:</b> Comp-phys-alps-users <comp-phys-alps-users-bounces@lists.phys.ethz.ch> för Michele Dolfi <dolfim@phys.ethz.ch><br>
<b>Skickat:</b> den 18 januari 2017 20:38<br>
<b>Till:</b> comp-phys-alps-users@lists.phys.ethz.ch<br>
<b>Ämne:</b> Re: [ALPS-users] Question about iDMRG in ALPS</font>
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<div>As a side note.
<div class="">We recently published a new version of the dmrg codes which are more flexible and faster.</div>
<div class=""><a href="http://dx.doi.org/10.1016/j.cpc.2014.08.019" class="">http://dx.doi.org/10.1016/j.cpc.2014.08.019</a></div>
<div class=""><br class="">
</div>
<div class=""><br class="">
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<div class="">Best,</div>
<div class="">Michele</div>
<div class=""><br class="">
<div class="">
<div class="" style="color:rgb(0,0,0); font-family:Helvetica; font-style:normal; font-weight:normal; letter-spacing:normal; line-height:normal; orphans:2; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; word-wrap:break-word">
<div class="">--</div>
<div class="">ETH Zurich</div>
<div class=""><span class="" style="">Dr.</span><span class="" style=""> </span>Michele Dolfi</div>
<div class="">Institute for Theoretical Physics</div>
<div class="">HIT G 32.4</div>
<div class="">Wolfgang-Pauli-Str. 27</div>
<div class="">8093 Zurich</div>
<div class="">Switzerland</div>
<div class=""><br class="">
</div>
<div class=""><a href="mailto:dolfim@phys.ethz.ch" class="">dolfim@phys.ethz.ch</a></div>
<div class=""><a href="http://www.itp.phys.ethz.ch" class="">www.itp.phys.ethz.ch</a></div>
<div class=""><br class="">
</div>
<div class="">+41 44 633 78 56 phone</div>
<div class="">+41 44 633 11 15 fax </div>
</div>
</div>
<br class="">
<div>
<blockquote type="cite" class="">
<div class="">On 18 Jan 2017, at 20:35, Michele Dolfi <<a href="mailto:dolfim@phys.ethz.ch" class="">dolfim@phys.ethz.ch</a>> wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div class="" style="word-wrap:break-word">Dear Axel,
<div class=""><br class="">
</div>
<div class="">Infinite systems are not supported in the current ALPS applications.</div>
<div class=""><br class="">
</div>
<div class="">However some people in our group worked on infinite algorithm based on ALPS.</div>
<div class=""><br class="">
</div>
<div class="">For example high temperature series expansion as well as perturbative series expansion by Andreas Hehn.</div>
<div class=""><a href="http://dx.doi.org/10.1016/j.cpc.2016.09.003" class="">http://dx.doi.org/10.1016/j.cpc.2016.09.003</a></div>
<div class=""><br class="">
</div>
<div class="">For infinite MPS there is also some work by Juan Osorio.</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<div class="">Best regards,</div>
<div class="">Michele</div>
<div class=""><br class="">
<div class="">
<div class="" style="font-family:Helvetica; font-style:normal; font-weight:normal; letter-spacing:normal; line-height:normal; orphans:2; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px; word-wrap:break-word">
<div class="">--</div>
<div class="">ETH Zurich</div>
<div class=""><span class="" style="">Dr.</span><span class="" style=""> </span>Michele Dolfi</div>
<div class="">Institute for Theoretical Physics</div>
<div class="">HIT G 32.4</div>
<div class="">Wolfgang-Pauli-Str. 27</div>
<div class="">8093 Zurich</div>
<div class="">Switzerland</div>
<div class=""><br class="">
</div>
<div class=""><a href="mailto:dolfim@phys.ethz.ch" class="">dolfim@phys.ethz.ch</a></div>
<div class=""><a href="http://www.itp.phys.ethz.ch/" class="">www.itp.phys.ethz.ch</a></div>
<div class=""><br class="">
</div>
<div class="">+41 44 633 78 56 phone</div>
<div class="">+41 44 633 11 15 fax </div>
</div>
</div>
<br class="">
<div class="">
<blockquote type="cite" class="">
<div class="">On 18 Jan 2017, at 18:16, Axel Gagge <<a href="mailto:axel.gagge@fysik.su.se" class="">axel.gagge@fysik.su.se</a>> wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<p class="" style="margin-top:0px; margin-bottom:0px; font-family:Calibri,Arial,Helvetica,sans-serif; font-size:16px; font-style:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; background-color:rgb(255,255,255)">
</p>
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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<span class="" style="font-size:12pt"> get
the error: "</span><span class="" style="font-size:12pt">b</span><span class="" style="font-size:12pt">ad 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... </span></div>
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<span class="" style="font-size:12pt"><br class="">
</span></div>
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<span class="" style="font-size:12pt">Is this the correct way to approach this or is there any other way to get out iDMRG calculations?</span></div>
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Best<br class="">
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/Axel<br class="">
</div>
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PhD Student<br class="">
</div>
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Stockholm University<br class="">
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<span id="cid:9843E21C-5DA9-49D4-B203-027EF78925A3@v.cablecom.net" class=""><my_models.xml></span><span id="cid:8B4E92DE-7815-4E81-9858-C2EBFBD92F01@v.cablecom.net" class=""><my_lattices.xml></span><span id="cid:5D76FBFB-C7F4-4B14-BC58-09667126A279@v.cablecom.net" class=""><Test
of iDMRG.ipynb></span><br class="" style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:16px; font-style:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; background-color:rgb(255,255,255)">
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