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<p class="xmsonormal"><b><span style="font-size:16.0pt;font-family:"Aptos",sans-serif">Monday 17<sup>th</sup> February at 3pm, A113 CAPT – Theoretical Physics Student Seminar<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:16.0pt;font-family:"Aptos Display",sans-serif">Usama Aqeel<o:p></o:p></span></p>
<p class="xmsonormal"><i><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Blowing Bubbles in Euclidean Spacetime</span></i><b><span style="font-size:16.0pt;font-family:"Aptos",sans-serif"><o:p></o:p></span></b></p>
<p class="xmsonormal"><b><span style="font-size:16.0pt;font-family:"Aptos",sans-serif">---<o:p></o:p></span></b></p>
<p class="xmsonormal"><b><span style="font-size:16.0pt;font-family:"Aptos",sans-serif">Tuesdays at 11am, CAPT Foyer – Astro Coffee<o:p></o:p></span></b></p>
<p class="xmsonormal"><b><span style="font-size:16.0pt;font-family:"Aptos",sans-serif"><o:p> </o:p></span></b></p>
<p class="xmsonormal"><b><span style="font-size:16.0pt;font-family:"Aptos",sans-serif">Tuesdays at 11.30am, A113 CAPT - Astronomy Journal Club<o:p></o:p></span></b></p>
<p class="xmsonormal"><b><span style="font-size:16.0pt;font-family:"Aptos",sans-serif"><o:p> </o:p></span></b></p>
<p class="xmsonormal"><b><span style="font-size:16.0pt;font-family:"Aptos",sans-serif">Tuesday 18<sup>th</sup> February at 1pm, A113 CAPT – Particle Cosmology and Gravity Seminar<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:16.0pt;font-family:"Aptos Display",sans-serif">John Carlton (King’s College London)<o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:12.0pt;color:black;mso-ligatures:none;mso-fareast-language:EN-GB">Massive graviton dark matter searches with long-baseline atom interferometers<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:12.0pt;color:black;mso-ligatures:none;mso-fareast-language:EN-GB"><o:p> </o:p></span></i></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black;mso-ligatures:none;mso-fareast-language:EN-GB">Atom interferometers offer exceptional sensitivity to ultra-light dark matter (ULDM) through their precise measurement of phenomena acting on atoms.
Previous work has established their capability to detect scalar and vector ULDM, but their potential for detecting spin-2 ULDM has until recently remained unexplored. In this talk I will introduce the sensitivity of atom interferometers to spin-2 ULDM by considering
several frameworks for massive gravity: a Lorentz-invariant Fierz-Pauli case and two Lorentz-violating scenarios. Coherent oscillations of the spin-2 ULDM field induce a measurable phase shift through three distinct channels: coupling of the scalar mode to
atomic energy levels, and vector and tensor effects that modify the propagation of atoms and light. Atom interferometers uniquely probe all of these effects, while providing sensitivity to a different mass range from laser interferometers. These results demonstrate
an exciting new theory target for atom interferometers and other quantum sensors to explore. I will also discuss challenges faced by these experiments from environmental noise.<o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:12.0pt;color:black;mso-ligatures:none;mso-fareast-language:EN-GB"><o:p> </o:p></span></i></p>
<p class="MsoNormal"><span style="font-size:12.0pt">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">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></span><span style="color:black"><br>
</span><span style="font-size:16.0pt;font-family:"Aptos Display",sans-serif;color:black">---</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="xmsonormal"><b><span style="font-size:16.0pt;font-family:"Aptos Display",sans-serif">Wednesday 19<sup>th</sup> February at 3.45pm, C4 Physics – Astronomy Seminar</span></b><o:p></o:p></p>
<p class="xmsonormal"><span style="font-size:16.0pt;font-family:"Aptos Display",sans-serif;mso-fareast-language:EN-US">Andy Young (Bristol)<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><i><span style="font-size:12.0pt;color:black;mso-ligatures:none;mso-fareast-language:EN-GB">X-raying Black Hole Accretion Flows<o:p></o:p></span></i></p>
<p class="MsoNormal" style="background:white"><i><span style="font-size:12.0pt;color:black;mso-ligatures:none;mso-fareast-language:EN-GB"><o:p> </o:p></span></i></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black;mso-ligatures:none;mso-fareast-language:EN-GB">X-ray observations of black hole accretion flows can be used to study the accretion disc, corona, and black hole spacetime.
I will explain how a combination of spectroscopy and timing can be used to measure black hole spin, mass, and geometry of the accretion flow. However, existing models are incomplete because they cannot self-consistently explain all the features of observations,
or model “realistic” disc and corona geometries. I will describe our recent work on producing fast, flexible, numerical models that we plan to fit to X-ray spectral timing data.<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black;mso-ligatures:none;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="xmsonormal"><b><span style="font-size:16.0pt;font-family:"Aptos Display",sans-serif">Wednesday 19<sup>th</sup> February at 6pm, Arts Lecture Theatre – Cosmic Titans: Dark Side of the Universe (Evening Talk)</span></b><o:p></o:p></p>
<p class="MsoNormal" style="background:white"><span style="font-size:16.0pt;font-family:"Aptos Display",sans-serif;color:black;mso-ligatures:none">£3 (free concessions)</span><span style="font-size:16.0pt;font-family:"Aptos Display",sans-serif;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:16.0pt;font-family:"Aptos Display",sans-serif;color:black;mso-ligatures:none">Running Time: 1 hour</span><span style="font-size:12.0pt;color:black;mso-ligatures:none;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black;mso-ligatures:none;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black;mso-ligatures:none;mso-fareast-language:EN-GB">Professor Edward Daw, University of Sheffield, discusses the search for signatures of dark matter particles.<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black;mso-ligatures:none;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black;mso-ligatures:none;mso-fareast-language:EN-GB">Joining the conversation will be artists Daniela Brill Estrada and Monica C. LoCascio, who collaborate in their quest to give
poetic material form to the invisible.<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black;mso-ligatures:none;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black;mso-ligatures:none;mso-fareast-language:EN-GB">For more information and to book, please click
<a href="https://www.lakesidearts.org.uk/event/dark-side-of-the-universe/">here</a>.<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:16.0pt;font-family:"Aptos Display",sans-serif;color:black">---<o:p></o:p></span></p>
<p class="xmsonormal"><b><span style="font-size:16.0pt;font-family:"Aptos Display",sans-serif">Thursday 20<sup>th</sup> February at 1pm–
</span></b><b><span style="font-size:16.0pt;font-family:"Aptos Display",sans-serif;mso-fareast-language:EN-US">Visit to Cosmic Titans exhibition at Lakeside Arts</span></b><span style="font-size:16.0pt;font-family:"Aptos Display",sans-serif;mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="xmsonormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Leaving CAPT at 1pm, returning no longer than 1:45pm<o:p></o:p></span></p>
<p class="xmsonormal"><b><span style="font-size:16.0pt;font-family:"Aptos",sans-serif"><o:p> </o:p></span></b></p>
<p class="xmsonormal"><b><span style="font-size:16.0pt;font-family:"Aptos",sans-serif">Thursday 20<sup>th</sup> February at 3pm, A113 CAPT – Particle Cosmology Journal Club<o:p></o:p></span></b></p>
<p class="MsoNormal">---<o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-size:16.0pt">Fridays at 4pm, CAPT Foyer – CAPT Cakes<o:p></o:p></span></b></p>
<p class="MsoNormal">---<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt">If you have any events/visitors you would like included in next week’s bulletin, please let me know</span><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">Best wishes<span style="mso-ligatures:none"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span style="font-size:6.0pt;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-GB">Ella<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:6.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif;color:#009BBD;mso-fareast-language:EN-GB">Ella Batchelor
</span></b><span style="font-family:"Arial",sans-serif;color:#009BBD;mso-fareast-language:EN-GB">(she/her)</span><o:p></o:p></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif;color:#0F1245;mso-fareast-language:EN-GB">Administrator</span></b><span style="mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-family:"Arial",sans-serif;color:#0F1245;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#0F1245;mso-fareast-language:EN-GB">School of Physics & Astronomy</span><span lang="ZH-CN" style="font-size:9.0pt;font-family:"MS Gothic";color:#0F1245;mso-fareast-language:ZH-CN">
</span><span lang="EN-US" style="font-size:9.0pt;font-family:"MS Mincho";color:#0F1245;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#0F1245;mso-fareast-language:EN-GB">University of Nottingham</span><span lang="EN-US" style="font-size:9.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#0F1245;mso-fareast-language:EN-GB">A112a Centre for Astronomy & Particle Theory</span><span lang="EN-US" style="font-size:9.0pt;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#0F1245;mso-fareast-language:EN-GB">University Park</span><span lang="EN-US" style="font-size:9.0pt;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#0F1245;mso-fareast-language:EN-GB">Nottingham, NG7 2RD</span><span lang="EN-US" style="font-size:9.0pt;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:9.0pt;mso-fareast-language:EN-GB"> <o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#0F1245;mso-fareast-language:EN-GB">+44 (0) 115 74 86778<b> </b></span><b><span lang="EN-US" style="font-size:9.0pt;color:#0F1245;mso-fareast-language:EN-GB">| </span></b><b><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#0F1245;mso-fareast-language:EN-GB">
</span></b><span style="mso-fareast-language:EN-GB"><a href="http://nottingham.ac.uk/"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:blue">nottingham.ac.uk</span></a><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
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