Triangle Seminars
Monday, 22 Jun 2020
Description:
Mathematica Summer School is a unique international event in theoretical physics, with a long history of success. It has a unique format; the morning sessions are reserved for lecture sessions on theoretical aspects and in the afternoon, students and mentors get together to solve complicated problems using the software Mathematica - a popular computational tool in theoretical physics.
This summer school aims to equip young researchers with skills required to use modern computational tools and to provide them a platform to interact with experts from different mathematical fields, including computer algebra systems.
The topic for the 2019 edition of the Mathematica Summer School is ‘d>2 Conformal Field Theories’. It will focus on using Mathematica to explore physical and mathematical properties of conformal field theories (CFTs), in generic dimensions; an active area of modern mathematical physics. It will also cover various other aspects of CFTs, including integrability, holography, conformal bootstrap, topological sectors and mathematical aspects.
Lecturers include :
Till Bargheer, Hannover University and DESY
Nikolay Gromov, King’s College London
Jason Harris, Wolfram
Aninda Sinha, Indian Institute of Science
Pedro Vieira, Perimeter Institute and ICTP – SAIFR
Alexander Zhiboedov, CERN
Registration is open to PhD students, early PostDocs and advanced undergraduate and masters students in Theoretical Physics
APPLICATION DEADLINE: 22 February 2020
CONTACT US: msstp2020@icts.res.in
PROGRAM LINK: https://www.icts.res.in/discussion-meeting/msstp2020
For any further details feel free to contact:
Julius,
Mathematics Department,
King's College London
Email: julius.julius@kcl.ac.uk
Mathematica Summer School is a unique international event in theoretical physics, with a long history of success. It has a unique format; the morning sessions are reserved for lecture sessions on theoretical aspects and in the afternoon, students and mentors get together to solve complicated problems using the software Mathematica - a popular computational tool in theoretical physics.
This summer school aims to equip young researchers with skills required to use modern computational tools and to provide them a platform to interact with experts from different mathematical fields, including computer algebra systems.
The topic for the 2019 edition of the Mathematica Summer School is ‘d>2 Conformal Field Theories’. It will focus on using Mathematica to explore physical and mathematical properties of conformal field theories (CFTs), in generic dimensions; an active area of modern mathematical physics. It will also cover various other aspects of CFTs, including integrability, holography, conformal bootstrap, topological sectors and mathematical aspects.
Lecturers include :
Till Bargheer, Hannover University and DESY
Nikolay Gromov, King’s College London
Jason Harris, Wolfram
Aninda Sinha, Indian Institute of Science
Pedro Vieira, Perimeter Institute and ICTP – SAIFR
Alexander Zhiboedov, CERN
Registration is open to PhD students, early PostDocs and advanced undergraduate and masters students in Theoretical Physics
APPLICATION DEADLINE: 22 February 2020
CONTACT US: msstp2020@icts.res.in
PROGRAM LINK: https://www.icts.res.in/discussion-meeting/msstp2020
For any further details feel free to contact:
Julius,
Mathematics Department,
King's College London
Email: julius.julius@kcl.ac.uk
Posted by: julius.julius@kcl.ac.uk
Tuesday, 23 Jun 2020
Challenging the Inflationary Paradigm
Eugene Lim
(King's College London)
Abstract:
Inflation is now the paradigmatic theory of the Big Bang. But is it deserved? I will describe the conceptual and theoretical challenges that Inflation is still facing, argue that we should keep an open mind. In particular, I will argue that while it is a theory that claims to be a theory of initial conditions of the Universe, successful inflation actually depends on an intimate interplay between its own initial conditions and the inflationary model. I will show how one might go about probing this interplay by testing whether inflation can begin if its own initial conditions are not homogenous. ––- Follow the usual link or contact the organisers (Antoine Bourget and Edoardo Vescovi). Student introduction at 13:00.
Inflation is now the paradigmatic theory of the Big Bang. But is it deserved? I will describe the conceptual and theoretical challenges that Inflation is still facing, argue that we should keep an open mind. In particular, I will argue that while it is a theory that claims to be a theory of initial conditions of the Universe, successful inflation actually depends on an intimate interplay between its own initial conditions and the inflationary model. I will show how one might go about probing this interplay by testing whether inflation can begin if its own initial conditions are not homogenous. ––- Follow the usual link or contact the organisers (Antoine Bourget and Edoardo Vescovi). Student introduction at 13:00.
Posted by: IC
Wednesday, 24 Jun 2020
A review of SYK and attempts at a bulk dual
Vladimir Rosenhaus
(IAS)
Abstract:
Most recent discussions of holography in AdS_2/CFT_1 have focused on the Schwarzian and JT gravity. However, the AdS dual of SYK is expected to, in addition, contain an infinite tower of massive fields. The interactions for these fields are in principle fixed by the SYK correlation functions. We review the construction of all-point correlation functions in SYK. We comment on the difficulties in finding a coherent description of the bulk tower of fields.
Part of the Black Hole Information Paradox Journal Club. Please email damian.galante@kcl.ac.uk for link to the meeting.
Most recent discussions of holography in AdS_2/CFT_1 have focused on the Schwarzian and JT gravity. However, the AdS dual of SYK is expected to, in addition, contain an infinite tower of massive fields. The interactions for these fields are in principle fixed by the SYK correlation functions. We review the construction of all-point correlation functions in SYK. We comment on the difficulties in finding a coherent description of the bulk tower of fields.
Part of the Black Hole Information Paradox Journal Club. Please email damian.galante@kcl.ac.uk for link to the meeting.
Posted by: andrea
Thursday, 25 Jun 2020
Exact g-functions
Joao Caetano
(Simons Center)
Abstract:
The g-function is a measure of degrees of freedom associated to a boundary of two-dimensional quantum field theories. In integrable theories, it can be computed exactly in a form of the Fredholm determinant, but it is often hard to evaluate numerically. In this paper, we derive functional equations–-or equivalently integral equations of the thermodynamic Bethe ansatz (TBA) type–-which directly compute the g-function in the simplest integrable theory; the sinh-Gordon theory at the self-dual point. The derivation is based on the classic result by Tracy and Widom on the relation between Fredholm determinants and TBA, which was used also in the context of topological string. As a side result, we present multiple integrals of Q-functions which we conjecture to describe a universal part of the g-function, and discuss its implication to integrable spin chains.
––––––––––––- Part of London Integrability Journal Club. New participants please register at integrability-london.weebly.com to receive the link.
The g-function is a measure of degrees of freedom associated to a boundary of two-dimensional quantum field theories. In integrable theories, it can be computed exactly in a form of the Fredholm determinant, but it is often hard to evaluate numerically. In this paper, we derive functional equations–-or equivalently integral equations of the thermodynamic Bethe ansatz (TBA) type–-which directly compute the g-function in the simplest integrable theory; the sinh-Gordon theory at the self-dual point. The derivation is based on the classic result by Tracy and Widom on the relation between Fredholm determinants and TBA, which was used also in the context of topological string. As a side result, we present multiple integrals of Q-functions which we conjecture to describe a universal part of the g-function, and discuss its implication to integrable spin chains.
––––––––––––- Part of London Integrability Journal Club. New participants please register at integrability-london.weebly.com to receive the link.
Posted by: andrea