<div id="__MailbirdStyleContent" style="font-size: 10pt;font-family: Arial;color: #1A1A1A;text-align: left" dir="ltr">Huom! Perjantaina kollokvio.<div><br></div><div>Antero Voutilainen</div><div>Puheenjohtaja<br><div><div class="history_container"><p style="color: margin-top: 10px;">------ Forwarded Message --------<br>From: Tero Tapio Heikkilä <tero.t.heikkila@jyu.fi><br>Date: 07/05/2024 9.34.57 <br>Subject: Mika Prunnila: On-chip electron refrigeration for quantum technology in the physics colloquium on Friday <br>To: jyflstaff@korppi.jyu.fi, Nanostaff <nanostaff@maillists.jyu.fi>, Antero Voutilainen <puheenjohtaja@jyfk.fi>, Heinosaari, Teiko <teiko.heinosaari@jyu.fi><br></p><div style="font-family:Arial,Helvetica,sans-serif">
<p>Welcome to the University of Jyväskylä physics colloquium. <br>
</p>
<p> On Friday 10th May at 10 am in FYS1 and <a href="https://jyufi.zoom.us/j/66703175507">Zoom</a> (passcode
890524):</p>
<p><b>Mika Prunnila (VTT):</b></p>
<p><i>On-chip electron refrigeration for quantum technology</i></p>
<p><span style="mso-fareast-language:EN-US" lang="EN-US">Numerous
applications, from industrial non-destructive imaging through
ultra-sensitive photon counting to various implementations of
solid-state quantum computers require low temperatures for their
sensor and processor chips. Replacing the bulky cryo-liquid
based cooling stages of cryo-enabled instruments by chip scale
refrigeration is envisioned to disruptively reduce the system
size similarly as microprocessors did for computers. Chip scale
cooling has been demonstrated with electronic refrigerators
based on tunnel junctions in the sub-1 K temperature range, and
just recently also above 2 K. In this colloquium I will discuss
physics and recent approaches of chip scale refrigeration.</span></p>
<p>Welcome!</p>
<p> Coffee will be served in the lobby. Although on-site attendance
is the preferred option, you can also join via Zoom. Please do not
send chat messages in Zoom during the talk, except if you need to
tell about a muted speaker. <br>
</p>
<p> Confirmed colloquium talks in the Spring 2024 (you are welcome
to suggest more - there are still a couple of open slots in May):</p>
5.6. (Wednesday!) Arttu Rajantie (London): <i>TBA<br>
</i>18.6. Toshimi Suda (Tohoku): <i>What do unstable atomic nuclei
look like?</i> (tentative)<br>
<p></p>
<p></p>
<pre class="moz-signature" cols="72">--
Tero Heikkilä
Professor, Department of Physics
University of Jyväskylä</pre>
</div></div>
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