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A gentle reminder of today's seminar</div>
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<div><b><i>Speaker:</i></b> <b>Christian Kading</b> (TU Wien, Vienna) </div>
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<b><i>Seminar date:<u> 26</u>th<u> </u></i><u> September, Thursday, 3 pm</u></b></div>
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<b><i>Venue:</i></b> Seminar Room <b><u>A 113</u></b></div>
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<b><i>Title:</i></b> <b>New paths in the search for light scalar fields</b></div>
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<b><i>Abstract:</i></b> The existence of additional light scalar fields in nature is predicted by many theories in modern physics. In particular, light scalar fields are suggested to play a variety of roles in cosmology and astrophysics. For example, they are
frequently considered as candidates for dark matter or dark energy. Consequently, there are continuing experimental and theoretical efforts in searching for light scalar fields. In this talk, we will look at chameleons, symmetrons, and environment-dependent
dilatons as prominent examples of so-called screened scalar fields. We will theoretically discuss the use of (open) quantum dynamics and finite-temperature effects as new ways of probing such models. In particular, we will show that some of these previously
untaken paths have the potential to put tighter constraints on the parameter spaces of light scalar fields.<br>
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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="OWAfd89ef84-0595-bcf8-b88a-6d151c34bcda" class="OWAAutoLink" rel="noopener noreferrer" data-auth="NotApplicable" data-linkindex="0" data-ogsc="" style="margin: 0px;">
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<b><u>A list of upcoming seminars for this term </u></b>(with rough titles)</div>
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· 01 Oct | Dibya Chakraborty (Indian Institute of Technology, Madras) | String Cosmology</div>
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· 08 Oct | Theo Anton (QMUL) | Modified Gravity</div>
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· 10 Oct | Kieran Wood (Nottingham) | Multi-metric gravity and Gregory-Leflamme instability
<b>(Journal Club time)</b></div>
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· 15 Oct | Eemeli Tomberg (Lancaster U) | Compaction function for Primordial Black Holes</div>
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· 22 Oct | Ayngaran Thavanesan (DAMTP Cambridge) | Cosmological CPT theorem </div>
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· 29 Oct | Santiago Agui Salcedo (DAMTP Cambridge) | Open EFT for inflation</div>
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· 05 Nov | Yuyu Mo (Edinburgh Higgs Centre) | Bootstrap</div>
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· 12 Nov | Alex Jenkins (UCL) | Quantum Matter, Analogue Gravity</div>
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· 19 Nov | Bjoern Friedrich (Heidelberg) | String Phenomenology</div>
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· 26 Nov | Tamara Evstafyeva (DAMTP Cambridge) | Gravitational Waves</div>
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· 03 Dec | Emma Albertini (Imperial College London) | Gravity, Scattering Amplitudes</div>
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· 10 Dec | TBD</div>
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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" 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" style="color: rgb(17, 85, 204); margin-top: 0px; margin-bottom: 0px;">https://inspirehep.net/authors/1517353</a></span></p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Swagat Mishra (staff) <ppzsm5@exmail.nottingham.ac.uk><br>
<b>Sent:</b> 23 September 2024 01:04<br>
<b>To:</b> capt@nottingham.ac.uk <capt@nottingham.ac.uk>; maths-quantum-gravity-group@lists.nottingham.ac.uk <maths-quantum-gravity-group@lists.nottingham.ac.uk>; O365-Gravity Laboratory <o365-gravitylaboratory@UniofNottm.onmicrosoft.com><br>
<b>Cc:</b> Ella Batchelor (staff) <ppzeb1@exmail.nottingham.ac.uk>; Käding, Christian <christian.kaeding@tuwien.ac.at>; joonas.o.hirvonen@helsinki.fi <joonas.o.hirvonen@helsinki.fi>; Wachter, Jeremy <wachterj@wit.edu>; Bobby Acharya <bacharya@ictp.it>; Drande
Patogu <ppydp10@exmail.nottingham.ac.uk><br>
<b>Subject:</b> Particle Cosmology and Gravity Seminars this week</font>
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Dear All,</div>
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This week, we will be hosting two seminars (one on Tuesday and one on Thursday). In the following, I provide the details of seminars for this week, as well as
<b><i>a list of upcoming seminars for the term</i></b>.</div>
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<b>Week: 23/09/2024 - 27/09/2024</b></div>
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<div class="x_elementToProof" style="direction:ltr; margin:0px"><b><i>Speaker:</i> Jeremy Wachter</b> (Wentworth Institute of Technology, Boston) (<b>Online Seminar</b>)</div>
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<b><i>Seminar date:<u> 24</u><sup>th</sup><u> </u></i><u> September, Tuesday, 1 pm</u></b></div>
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<b><i>Venue:</i></b> Seminar Room <b><u>A 113</u></b></div>
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<b><i>Title:</i></b> <b>Numerical studies of gravitational self-evolution of cosmic string loops</b></div>
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<b><i>Abstract:</i></b> We present the results of large-scale numerical calculation of how realistic cosmic string loops evolve due to gravitational self-interaction. Initially kinky loops are smoothed, leading to a reduction in the gravitational wave power.
However, smoothing never produces strong cusps. Gravitational self-interaction also causes the gravitational wave background from loops to be reduced, more strongly at higher frequencies. We comment on future detectability and other observable impacts, such
as loop clustering in galaxies.</div>
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<div class="x_elementToProof" style="direction:ltr; margin:0px"><b><i>Speaker:</i></b> <b>Christian Kading</b> (TU Wien, Vienna) visiting Clare Burrage </div>
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<b><i>Seminar date:<u> 26</u><sup>th</sup><u> </u></i><u> September, Thursday, 3 pm</u></b></div>
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<b><i>Venue:</i></b> Seminar Room <b><u>A 113</u></b></div>
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<b><i>Title:</i></b> <b>New paths in the search for light scalar fields</b></div>
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<b><i>Abstract:</i></b> The existence of additional light scalar fields in nature is predicted by many theories in modern physics. In particular, light scalar fields are suggested to play a variety of roles in cosmology and astrophysics. For example, they are
frequently considered as candidates for dark matter or dark energy. Consequently, there are continuing experimental and theoretical efforts in searching for light scalar fields. In this talk, we will look at chameleons, symmetrons, and environment-dependent
dilatons as prominent examples of so-called screened scalar fields. We will theoretically discuss the use of (open) quantum dynamics and finite-temperature effects as new ways of probing such models. In particular, we will show that some of these previously
untaken paths have the potential to put tighter constraints on the parameter spaces of light scalar fields.<br>
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<b><u>A list of upcoming seminars for this term </u></b>(with rough titles)</div>
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01 Oct | Dibya Chakraborty (Indian Institute of Technology, Madras) | String Cosmology</div>
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08 Oct | Theo Anton (QMUL) | Modified Gravity</div>
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10 Oct | Kieran Wood (Nottingham) | Multi-metric gravity and Gregory-Leflamme instability
<b>(Journal Club time)</b></div>
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15 Oct | Eemeli Tomberg (Lancaster U) | Compaction function for Primordial Black Holes</div>
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22 Oct | Ayngaran Thavanesan (DAMTP Cambridge) | Cosmological CPT theorem </div>
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29 Oct | Santiago Agui Salcedo (DAMTP Cambridge) | Open EFT for inflation</div>
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05 Nov | Yuyu Mo (Edinburgh Higgs Centre) | Bootstrap</div>
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12 Nov | Alex Jenkins (UCL) | Quantum Matter, Analogue Gravity</div>
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19 Nov | Bjoern Friedrich (Heidelberg) | String Phenomenology</div>
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26 Nov | Tamara Evstafyeva (DAMTP Cambridge) | Gravitational Waves</div>
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03 Dec | Emma Albertini (Imperial College London) | Gravity, Scattering Amplitudes</div>
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10 Dec | TBD<br>
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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="OWA06fef029-9e36-280b-a620-f2adaec48721" class="x_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="OWA7a4600df-a265-1c8f-491f-a1a5b17bb175" class="x_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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