<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)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 2 4;}
@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;}
@font-face
{font-family:"Segoe UI";
panose-1:2 11 5 2 4 2 4 2 2 3;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:10.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
p.m-642861739458883080paragraph, li.m-642861739458883080paragraph, div.m-642861739458883080paragraph
{mso-style-name:m_-642861739458883080paragraph;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.m-642861739458883080normaltextrun
{mso-style-name:m_-642861739458883080normaltextrun;}
span.m-642861739458883080scxw113168724
{mso-style-name:m_-642861739458883080scxw113168724;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
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-US" link="blue" vlink="purple" style="word-wrap:break-word">
<div class="WordSection1">
<div>
<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
<div>
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><o:p> </o:p></p>
<p class="m-642861739458883080paragraph" align="center" style="margin:0in;text-align:center;vertical-align:baseline">
<img width="624" height="190" style="width:6.5in;height:1.9791in" id="m_-642861739458883080Picture_x0020_1" src="cid:18627e3ec714cff311"><o:p></o:p></p>
<p class="m-642861739458883080paragraph" align="center" style="margin:0in;text-align:center;vertical-align:baseline;white-space:pre-wrap;font-kerning:none">
<span class="m-642861739458883080normaltextrun"><b><span style="font-size:26.0pt;font-family:"Times New Roman",serif;color:#006FC0">Physics & Astronomy Colloquium</span></b></span><o:p></o:p></p>
<p class="m-642861739458883080paragraph" align="center" style="margin:0in;text-align:center;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Segoe UI",sans-serif"> </span><o:p></o:p></p>
<p class="m-642861739458883080paragraph" align="center" style="margin:0in;text-align:center;vertical-align:baseline;white-space:pre-wrap;font-kerning:none">
<span style="font-size:9.0pt;font-family:"Segoe UI",sans-serif"> </span><o:p></o:p></p>
<p class="MsoNormal" align="center" style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:23.1pt;text-align:center;white-space:pre-wrap;font-kerning:none">
<span style="font-size:7.0pt;font-family:"Arial",sans-serif;color:black;background:#FAF9F8"><br>
<br>
<br>
<br>
</span><i><span style="font-size:26.0pt;font-family:"Times New Roman",serif">Superconducting Single Photon Detectors: From Quantum Networks to Dark Matter
</span></i><o:p></o:p></p>
<p class="MsoNormal" align="center" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:center">
<span style="font-size:11.0pt"> </span> <o:p></o:p></p>
<p class="MsoNormal" align="center" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:center">
<span class="m-642861739458883080scxw113168724"><span style="font-size:11.0pt"> </span></span><span style="font-size:11.0pt"><br>
</span><span class="m-642861739458883080normaltextrun"><b><i><span style="font-size:28.0pt;font-family:"Times New Roman",serif">Dr. Cristian Pena</span></i></b></span><o:p></o:p></p>
<p class="m-642861739458883080paragraph" align="center" style="margin:0in;text-align:center;vertical-align:baseline">
<span class="m-642861739458883080normaltextrun"><b><span style="font-size:28.0pt;font-family:"Times New Roman",serif">Fermilab</span></b></span><o:p></o:p></p>
<p class="m-642861739458883080paragraph" align="center" style="margin:0in;text-align:center;vertical-align:baseline">
<span style="font-size:12.0pt;font-family:"Times New Roman",serif"> </span><o:p></o:p></p>
<p align="center" style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;text-align:center">
<span style="font-size:12.0pt;font-family:"Times New Roman",serif">Abstract: Superconducting nanowire single photon detectors (SNSPDs) are low-threshold quantum sensors designed to detect UV, optical and infrared photons. SNSPDs have enabled high-fidelity quantum
teleportation, deep space optical communications, exoplanet transit spectroscopy, searches for bosonic and fermionic DM, and have recently been proposed to search for quantum gravity in tabletop experiments. During the first part of this colloquium, I will
focus on applications in quantum networking with a emphasis on protocols including quantum teleportation and entanglement swapping using fiber-based infrastructure in the context of the Fermilab Quantum Network Experiment (FQNET) and the Illinois Express Quantum
Network (IEQNET) currently deployed at Fermilab and in the Chicagoland area. During the second part, I will cover an emergent research and development program to further decrease the energy threshold of SNSPDs to unprecedented levels and present ideas on how
this unique sensor capability will enable new fundamental physics experiments looking for the axions and dark photons.</span><o:p></o:p></p>
<p class="m-642861739458883080paragraph" align="center" style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:11.55pt;text-align:center;text-indent:24.45pt;vertical-align:baseline">
<span class="m-642861739458883080normaltextrun"><b><span style="font-size:18.0pt"> </span></b></span><o:p></o:p></p>
<p class="m-642861739458883080paragraph" align="center" style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:11.55pt;text-align:center;text-indent:24.45pt;vertical-align:baseline">
<span class="m-642861739458883080normaltextrun"><b><span style="font-size:18.0pt;font-family:"Times New Roman",serif;color:#2F5496">Thursday, May 18th, 2023</span></b></span><o:p></o:p></p>
<p class="m-642861739458883080paragraph" align="center" style="margin:0in;text-align:center;vertical-align:baseline">
<span class="m-642861739458883080normaltextrun"><b><span style="font-size:18.0pt;font-family:"Times New Roman",serif;color:#2F5496">3:40 PM in Winston Chung Hall (Room 138)</span></b></span><o:p></o:p></p>
<p class="m-642861739458883080paragraph" align="center" style="margin:0in;text-align:center;vertical-align:baseline;white-space:pre-wrap;font-kerning:none">
<span class="m-642861739458883080normaltextrun"><b><span style="font-size:18.0pt;font-family:"Times New Roman",serif;color:#2F5496">Coffee will be served at 3:10 PM in the Barkas Lounge (3049 Physics)</span></b></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
</div>
</div>
</div>
</blockquote>
</div>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Heather McDermott</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Travel & Event Coordinator</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Physics & Astronomy Dept.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">University of California Riverside</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">Ph: 951-827-6169</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black"><a href="mailto:heatherm@ucr.edu"><span style="color:#0563C1">heatherm@ucr.edu</span></a></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black"> </span><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-family:"Tahoma",sans-serif;color:red;text-transform:uppercase;letter-spacing:2.0pt">AVAILABLE VIA ZOOM </span></b><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-family:"Tahoma",sans-serif;color:red;text-transform:uppercase;letter-spacing:2.0pt">FOR VIRTUAL OFFICE </span></b><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-family:"Tahoma",sans-serif;color:red;text-transform:uppercase;letter-spacing:2.0pt">HOURS AT:</span></b><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#232333;background:white"><a href="https://ucr.zoom.us/my/heathermcdermott" title="https://ucr.zoom.us/my/heathermcdermott"><span style="color:#0563C1">https://ucr.zoom.us/my/heathermcdermott</span></a></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
</div>
</body>
</html>