<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-GB" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal">To kick off the official 2016-17 John Anderson Colloquia series, our first speaker is Dr Luca Tagliacozzo who is a Chancellor’s Fellow at the department. As usual, there will be tea/coffee afterwards in the common room.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Title: Harnessing the complexity of quantum many-body systems<o:p></o:p></p>
<p class="MsoNormal">Speaker: Dr Luca Tagliacozzo, SUPA Department of Physics, Strathclyde<o:p></o:p></p>
<p class="MsoNormal">Time/Date: 3pm Wed 21<sup>st</sup> September 2016<o:p></o:p></p>
<p class="MsoNormal">Venue: John Anderson JA3.14<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Abstract:<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:3.0pt"><span style="font-size:10.5pt;color:black">Quantum many-body systems underlie our understanding of Nature. For example, an electric current of one Ampere for one second consists of around 10^18 electrons, and
a laser beam involves a huge number of photons. In these systems both photons and electrons interact weakly and thus can be described as “independent” particles enabling us to correctly describe their behaviour.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:3.0pt"><span style="font-size:10.5pt;color:black">What happens when a large number of constituents interact strongly? In most cases we don't know exactly but have observed that the emergent behaviour can be extremely
different from that of the individual constituents alone. To use the words of the Nobel Laureate Phil Anderson, "more is different".<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:3.0pt"><span style="font-size:10.5pt;color:black">In the quest to describe emergent phenomena, we have recently understood that entanglement can be used as a guiding principle to characterize collective behaviour. In
particular, I will discuss how understanding the structure of entanglement allows us to obtain an effective description of many-body systems in terms of tensor networks. This gives the unprecedented ability to compute the emerging properties of many-body quantum
systems from first principles. I will conclude by addressing the issue about the existence of entanglement in the real world, by presenting recent results about a strategy to measure entanglement in experiments.</span><span style="font-size:10.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">http://www.strath.ac.uk/science/physics/research/colloquia/<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">----<o:p></o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">Dr Daniel K. L. Oi<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">Lecturer, Quantum Information<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">Computational Nonlinear & Quantum Optics<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">SUPA Department of Physics<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">University of Strathclyde<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">Glasgow G4 0NG<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">United Kingdom<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">Tel: +44 141 548 3112<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">Fax: +44 141 552 2891<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">Web: cnqo.phys.strath.ac.uk<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">The Department of Physics, University of Strathclyde, Rated No. 1 in the UK by the UK led Research Excellence Framework (REF2014).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB"><br>
The University of Strathclyde is a charitable body, registered in Scotland, number SCO15263<o:p></o:p></span></p>
</div>
</body>
</html>