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<p class="MsoNormal">Dear all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This Thursday we have a special seminar by Bruno Bento, who will be visiting us from IFT Madrid. All staff and students are very welcome join.<o:p></o:p></p>
<p class="MsoNormal">Note the unusual time as it takes place during what would be the student journal club.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>Speaker:</b> <b>Bruno Valexio Bento</b> (IFT Madrid)<o:p></o:p></p>
<p class="MsoNormal"><b>Date:</b> March 13<sup>th</sup>, Thursday, 3pm UK time<o:p></o:p></p>
<p class="MsoNormal"><b>Venue</b>: CAPT A113<o:p></o:p></p>
<p><b><span style="color:black">Title: Tests and exploitations of String Theory: From Dark Energy to Gravitational Waves</span><o:p></o:p></b></p>
<p><b><span style="color:black">Abstract:</span></b><span style="color:black"> Although string theory is famously hard to connect with observations, a lot of work is currently done with the aim of both testing it and exploiting its features to address observational
puzzles. For instance, the nature of Dark Energy is one of the current big questions in cosmology--within string theory it is intimately tied to the search for de Sitter vacua within its vast landscape of solutions. As an example of exploitation, I will outline
a concrete and previously unexplored setup using Casimir energies on extra dimensions that are Riemann flat compact manifolds, where one can look for such de Sitter solutions. I will then turn to Gravitational Waves as probes of extra dimensions and discuss
how common ingredients in string compactifications might be key to their observability. We will look at a simple example of a binary system source in the context of a warped braneworld scenario, where we can compare the signals sourced by localised and extended
sources, and how these relate to fifth force constraints.</span><o:p></o:p></p>
<p class="MsoNormal" style="background:white"><b><span style="font-size:11.5pt;color:black"><o:p> </o:p></span></b></p>
<p class="MsoNormal" style="background:white"><b><span style="font-size:11.5pt;color:black">Link to join:</span></b><span style="font-size:11.5pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:11.5pt;color:black"><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><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best regards,<o:p></o:p></p>
<p class="MsoNormal">Benjamin<o:p></o:p></p>
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