<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
</head>
<body>
Уважаемые коллеги!<br>
<br>
В пятницу 1 декабря в 11:30 состоится коллоквиум, на котором будет
заслушан доклад:<br>
<br>
Alexander Altland (University of Cologne, DE)<br>
<b><font size="4">Quantum chaos in two-dimensional gravity</font></b><br>
<br>
Two-dimensional gravity defines a toy paradigm in which the physics
of gravitational systems is reduced to a bare minimum (essentially
topology and symmetry). Its simplicity makes it an ideal testbed for
holographic principles, a concrete realization of which was proposed
by Kitaev in terms of his now famous SYK model. The SYK model is
approximately dual to a two-dimensional bulk known as
Jackiw-Teitelboim (JT) gravity. Intriguingly, we have come to
understand that a third player (next to symmetry and topology)
essential to the construction of that holographic correspondence is
quantum chaos. In this seminar, I will try to review these
developments. Starting from a quick review of the SYK model and JT
gravity, we will discuss two conceptually independent bridges
between these systems. In particular, we will discuss how concepts
developed in the era of mesoscopics in the 90s in condensed matter
physics are now becoming key in gravity. If time permits, we will
also discuss how the Efetov supersymmetric sigma model (derived as a
student at the Landau institute) now appears as a natural
generalization of the above duality to string theory. <br>
<br>
ID и пароль онлайн-трансляций в Zoom те же, что и для предыдущих
трансляций семинаров и докладов на Ученом совете:<br>
<a class="moz-txt-link-freetext" href="https://zoom.us/j/96899364518?pwd=MzBsR2lYT0lYL2x2b1oyNU9LeWlWUT09">https://zoom.us/j/96899364518?pwd=MzBsR2lYT0lYL2x2b1oyNU9LeWlWUT09</a><br>
Meeting ID: 968 9936 4518<br>
Пароль: 250319<br>
<br>
При числе желающих не менее 5 будет организован автобус.<br>
Для записи на автобус из Москвы в Черноголовку необходимо до 18:00
четверга отправить письмо на адрес электронной почты <a class="moz-txt-link-abbreviated" href="mailto:bus@itp.ac.ru">bus@itp.ac.ru</a><br>
После этого записавшимся до 20:00 поступит подтверждение об отправке
или неотправке автобуса в зависимости от числа записавшихся.<br>
Запись на обратный автобус - на Ученом совете. <br>
</body>
</html>