<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">We apply Op1 first, so it is the second expression that you proposed.</div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">Best,</div><div class="">Michele</div><div class=""><br class=""></div><br class=""><div><blockquote type="cite" class=""><div class="">On 28 Mar 2017, at 17:09, Desmond <<a href="mailto:desmond2046@gmail.com" class="">desmond2046@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><span style="font-size:12.800000190734863px" class="">Dear all,</span><div style="font-size:12.800000190734863px" class=""><br class=""></div><div style="font-size:12.800000190734863px" class="">I'm asking about the custom measurement "MEASURE_LOCAL_AT" in the MPS codes.</div><div style="font-size:12.800000190734863px" class=""><br class=""></div><div style="font-size:12.800000190734863px" class="">For simplicity, let's consider one measurement on the ground state. From the documentation, the Syntax reads</div><div style="font-size:12.800000190734863px" class=""><br class=""></div><div style="font-size:12.800000190734863px" class="">Op1:Op2:Op3 | (i1, i2, i3)</div><div style="font-size:12.800000190734863px" class=""><br class=""></div><div style="font-size:12.800000190734863px" class="">My question is: what is the order of operation? Do we operate Op1 to the ground state first or do we operate Op3 to the ground state first?</div><div style="font-size:12.800000190734863px" class="">In another word, does it correspond to <gs|Op1 Op2 Op3|gs> or <gs|Op3 Op2 Op1|gs>?</div><div style="font-size:12.800000190734863px" class=""><br class=""></div><div style="font-size:12.800000190734863px" class="">Thanks!</div><div class="">Desmond</div>
</div>
<br class=""><br class="">----<br class="">Comp-phys-alps-users Mailing List for the ALPS Project<br class=""><a href="http://alps.comp-phys.org/" class="">http://alps.comp-phys.org/</a><br class=""><br class="">List info: https://lists.phys.ethz.ch//listinfo/comp-phys-alps-users<br class="">Archive: https://lists.phys.ethz.ch//pipermail/comp-phys-alps-users<br class=""><br class="">Unsubscribe by writing a mail to comp-phys-alps-users-leave@lists.phys.ethz.ch.</div></blockquote></div><br class=""></body></html>