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<span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;">Dear All,</span></p>
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<span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;"> We have a seminar this week, whose details are provided below - </span></p>
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<b><i>Speaker:</i> Andrzej Wereszczynski</b> (Institute of Physics, Jagiellonian University) (<b>In-person Seminar</b>)</div>
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<b><i>Seminar date: <u>4</u><sup><u>th</u></sup><u> February</u></i><u>, Tuesday, 1 pm</u></b> UK time</span></p>
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<b><i>Venue:</i></b> Seminar Room <b><u>A 113</u></b></span></p>
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<span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;"> <b><i>Title:</i></b>
</span><span style="font-family: CMBX12; font-size: 13pt; color: black;"><b>Oscillons from Q-balls through Renormalization</b></span></p>
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<span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;"><b><i>Abstract:</i></b>
</span><span style="font-family: CMR9; font-size: 12pt; color: rgb(0, 0, 0);">Using a renormalization-inspired perturbation expansion we show that oscillons in a generic field theory in (1+1)-dimensions arise as dressed Q-balls of a universal (up to the leading
nonlinear order) complex field theory. This theory reveals a close similarity to the integrable complex sine-Gordon model which possesses exact multi-</span><span style="font-family: CMMI9; font-size: 12pt; color: rgb(0, 0, 0);">Q</span><span style="font-family: CMR9; font-size: 12pt; color: rgb(0, 0, 0);">-balls.
We show that the excited oscillons, with characteristic modulations of their amplitude, are two-oscillons bound states generated from a two
</span><span style="font-family: CMMI9; font-size: 12pt; color: rgb(0, 0, 0);">Q</span><span style="font-family: CMR9; font-size: 12pt; color: rgb(0, 0, 0);">-ball solution.</span></p>
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Links to join: <a href="https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d" target="_blank" id="OWAd0aa062a-8f6e-f571-b54a-709cb26700f3" class="OWAAutoLink" title="https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d" rel="noopener noreferrer" data-ogsc="" data-auth="NotApplicable" data-linkindex="0" style="margin: 0px;">
https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d</a></div>
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<span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;"><b><u>List of upcoming Seminars</u></b></span></p>
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<span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;">11<sup>th</sup> Feb: Keir Rogers (Imperial) : Axions</span></p>
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<span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;">18<sup>th</sup> Feb : John Carlton (King's College) : Atom Interferometers</span></p>
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<span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;">25<sup>th</sup> Feb: Qi-Xin Xie (Nottingham) : Q-Ball Superradiance</span></p>
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<span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;">04<sup>th</sup> March: NO SEMINAR (PhD interviews)</span></p>
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<span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;">11<sup>th</sup> March: Diksha Jain (Cambridge) : Amplitudes, Correlators</span></p>
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With Regards,</div>
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-Swagat</div>
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<span style="font-size: 10pt; color: rgb(68, 68, 68); line-height: normal;"><b>Swagat Saurav Mishra</b></span><span style="font-size: 10pt; line-height: normal;">,</span></p>
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<span style="font-size: 10pt; color: rgb(32, 18, 77); line-height: normal;">Postdoctoral Research Associate</span></p>
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<span style="font-size: 10pt; color: rgb(32, 18, 77); line-height: normal;"></span><span style="font-size: 11pt; color: rgb(32, 18, 77); line-height: normal;"><br>
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<span style="font-size: 10pt; color: rgb(32, 18, 77); line-height: normal;">Particle Cosmology Group, </span></p>
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<span style="font-size: 10pt; color: rgb(32, 18, 77); line-height: normal;">Centre for Astronomy and Particle Theory,</span></p>
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<span style="font-size: 10pt; color: rgb(32, 18, 77); line-height: normal;">University of Nottingham, Nottingham NG7 2RD, UK.</span></p>
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<span style="font-size: 10pt; color: rgb(0, 0, 0); line-height: normal;">Website</span><span style="font-size: 10pt; color: rgb(32, 18, 77); line-height: normal;">:
</span><span style="font-size: 10pt; color: rgb(17, 85, 204); line-height: normal;"><a href="https://swagatam18.wordpress.com/" target="_blank" id="OWAde8dbf24-5c95-1c87-ec60-f38ac2eb201e" class="OWAAutoLink" style="color: rgb(17, 85, 204); margin-top: 0px; margin-bottom: 0px;">https://swagatam18.wordpress.com/</a></span><span style="font-size: 10pt; color: rgb(32, 18, 77); line-height: normal;"> </span></p>
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<span style="font-size: 10pt; color: rgb(0, 0, 0); line-height: normal;">Research Link</span><span style="font-size: 10pt; color: rgb(32, 18, 77); line-height: normal;">:</span><span style="font-size: 10pt; color: rgb(17, 85, 204); line-height: normal;"><a href="https://inspirehep.net/authors/1517353" target="_blank" id="OWA7372bf2e-df8e-a20a-041a-6b781528b439" class="OWAAutoLink" style="color: rgb(17, 85, 204); margin-top: 0px; margin-bottom: 0px;">https://inspirehep.net/authors/1517353</a></span></p>
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