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<p style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 12pt;"><strong style="font-size: 12pt; font-family: "Times New Roman", Times, serif;"><b><span style="font-size: 12pt;"><strong style="font-size:12pt"><strong>Monday, September 18, 2023 - Princeton
University
High Energy
Theory Seminar</strong></strong></span></b></strong><br></p>
<p class="MsoNormal" style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 12pt; margin: 0px;"><span style="font-family: "times new roman", times, serif; font-size: 12pt;">"</span><span style="font-family: "times new roman", times, serif; font-size: 12pt;">Three Perspectives on Two Throats</span><span style="font-family: "times new roman", times, serif; font-size: 12pt;">"</span><br></p>
<p style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 12pt;"><font face="Times
New Roman,
Times, serif"><span style="font-family:'times new roman' , 'times' , serif"> Location:
Jadwin Hall,
PCTS Room 407</span></font><font face="Times
New Roman,
Times, serif"><span style="font-family:'times new roman' , 'times' , serif"></span></font><font face="Times
New Roman,
Times, serif"><span style="font-family:'times new roman' , 'times' , serif"></span></font></p>
<p style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 12pt;"><font face="Times
New Roman,
Times, serif"><span style="font-family:'times new roman' , 'times' , serif"> Time: 2:30 PM<br>
</span></font></p>
<p style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 12pt;"><font face="Times
New Roman,
Times, serif"><span style="font-family:'times new roman' , 'times' , serif"> Speaker:
Christian
Ferko,
University of
California,
Davis<br>
</span></font></p>
<font face="Times
New Roman,
Times, serif" style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family:'times new roman' , 'times' , serif"> Website: <a href="https://gravity.princeton.edu/" rel="nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer" target="_blank">https://gravity.princeton.edu/</a></span></font><p style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 12pt;"><font face="Times
New Roman,
Times, serif"><span style="font-family:'times new roman' , 'times' , serif"> </span></font></p>
<p class="MsoNormal" style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 12pt; margin: 0px;"><font face="Times
New Roman,
Times, serif"><span style="font-family:'times new roman' , 'times' , serif"><span style="font-size:12pt"><strong><b><span style="font-family:'roman' 'times'"></span></b></strong></span></span></font></p>
<font face="Times
New Roman,
Times, serif" style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 12pt;"><span style="font-family:'times new roman' , 'times' , serif"><span style="font-family:'roman' 'times'"><a href="https://www.ias.edu/sns/events/physics" rel="nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer nofollow noopener noreferrer" target="_blank"></a></span></span></font>
</div><div class="WordSection1" style=""><span style="font-family: "times new roman", "new york", times, serif;" data-mce-style="font-family: 'times new roman', 'new york', times, serif;">Abstract: <!--StartFragment--><span style="color: rgb(0, 0, 0); font-size: 14.16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(253, 252, 250); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; float: none; display: inline !important;" data-mce-style="color: #000000; font-size: 14.16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #fdfcfa; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; float: none; display: inline !important;"> For certain black hole spacetimes, we are fortunate to have three complementary views of the same physics: (1) the low-energy gravity theory on the spacetime M, (2) worldsheet string theory with target space M, and (3) a holographic description living on the boundary of M. In this talk, I describe ongoing efforts to compare these perspectives in the context of two throat regions in such spacetimes. The first is the linear dilaton throat of solutions involving strings and NS5-branes, which is related to a T \bar{T}-like deformation of the dual CFT; here I describe new results from the gravity description. I will also mention work in progress on the D1-D5 system with a spacetime B-field, whose holographic dual involves a non-commutative open string theory. The second is the near-horizon AdS_2 throat of a near-extremal black hole, whose dynamics are controlled by the Schwarzian mode; here I describe new results from the worldsheet description.</span></span><!--EndFragment--><div style="clear: both;" data-mce-style="clear: both;"><br data-mce-bogus="1"></div></div></div><font face="Times
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