Triangle Seminars
Tuesday, 15 Dec 2020
tba
Frederik M. Denef
(Columbia University)
Abstract:
tba
[please email a.held@imperial.ac.uk for zoom link or password]
tba
[please email a.held@imperial.ac.uk for zoom link or password]
Posted by: IC
Wednesday, 16 Dec 2020
Holography of class F field theories
Morteza Hosseini
(Kavli IPMU)
Abstract:
I will perform a consistent reduction of 6d matter-coupled F(4) gauged supergravity on a compact Riemann surface of genus g, at the level of the bosonic fields. The result is an N=2 gauged supergravity coupled to two vector multiplets and a single hypermultiplet. The four-dimensional model is holographically dual to the 3d superconformal field theories of class F, describing different brane systems in massive type IIA and IIB wrapped on the Riemann Surface. I will then use the results to find the first examples of dyonic static black holes of class F and perform a microscopic counting of their entropy via the 5d topologically twisted index. I will also find new asymptotically AdS solutions, including rotating black holes, in the subtruncations of the 4d model, providing predictions for the squashed S^3 partition functions and the superconformal and refined twisted indices of class F field theories.
Join Zoom Meeting
https://zoom.us/j/92805841030?pwd=dTVGQ2h5ZUw4cndKd3JUYTNYVTMrdz09
Meeting ID: 928 0584 1030
Passcode: 902526
I will perform a consistent reduction of 6d matter-coupled F(4) gauged supergravity on a compact Riemann surface of genus g, at the level of the bosonic fields. The result is an N=2 gauged supergravity coupled to two vector multiplets and a single hypermultiplet. The four-dimensional model is holographically dual to the 3d superconformal field theories of class F, describing different brane systems in massive type IIA and IIB wrapped on the Riemann Surface. I will then use the results to find the first examples of dyonic static black holes of class F and perform a microscopic counting of their entropy via the 5d topologically twisted index. I will also find new asymptotically AdS solutions, including rotating black holes, in the subtruncations of the 4d model, providing predictions for the squashed S^3 partition functions and the superconformal and refined twisted indices of class F field theories.
Join Zoom Meeting
https://zoom.us/j/92805841030?pwd=dTVGQ2h5ZUw4cndKd3JUYTNYVTMrdz09
Meeting ID: 928 0584 1030
Passcode: 902526
Posted by: IC
Hamiltonian truncation in AdS
📍 London
Marco Meineri
(CERN)
Abstract:
We study quantum field theory in AdS_2 within the framework of Hamiltonian truncation. We start from a solvable theory and we deform the Hamiltonian with an interaction term. We find the spectrum as a function of the coupling, and we aim at connecting the solvable regime with the strongly coupled flat space physics. Hamiltonian truncation in infinite volume presents specific challenges, and special care is needed to recover the physical energy gaps as the cutoff is removed. To this end, we propose a general prescription, we give an argument for its validity and we check it in various examples.
[For the link to the Zoom room, please email alejandro.cabo_bizet@kcl.ac.uk].
We study quantum field theory in AdS_2 within the framework of Hamiltonian truncation. We start from a solvable theory and we deform the Hamiltonian with an interaction term. We find the spectrum as a function of the coupling, and we aim at connecting the solvable regime with the strongly coupled flat space physics. Hamiltonian truncation in infinite volume presents specific challenges, and special care is needed to recover the physical energy gaps as the cutoff is removed. To this end, we propose a general prescription, we give an argument for its validity and we check it in various examples.
[For the link to the Zoom room, please email alejandro.cabo_bizet@kcl.ac.uk].
Posted by: andrea
Thursday, 17 Dec 2020
Integrability Gong Show
seven speakers
Abstract:
We will have seven 10 mins talks + discussions, with:
1) Sara Bonansea (INFN Florence and NBI) - "Wilson loop correlators in defect N=4 SYM"
2) Andrea Fontanella (Humboldt) - "Lie Algebra Expansion in Coset Sigma Models and Non-relativistic String Theory"
3) Suvajit Majumder (City) - "Protected states in AdS3xS3xT4 from integrability"
4) Gerben Oling (NBI) - "Non-relativistic strings and limits of AdS/CFT"
5) Chiara Paletta (TCD) - "Integrable open quantum systems"
6) Davide Polvara (Durham) - "From tree-level perturbation theory to the S-matrix bootstrap in two dimensions"
7) Anton Pribytok (TCD) - "Deformed AdS Integrability and Free Fermion Condition"
–––––––––––––––––- Part of the London Integrability Journal Club. New participants are required to register using the form at integrability-london.weebly.com. The link will be emailed. Abstracts on the website.
We will have seven 10 mins talks + discussions, with:
1) Sara Bonansea (INFN Florence and NBI) - "Wilson loop correlators in defect N=4 SYM"
2) Andrea Fontanella (Humboldt) - "Lie Algebra Expansion in Coset Sigma Models and Non-relativistic String Theory"
3) Suvajit Majumder (City) - "Protected states in AdS3xS3xT4 from integrability"
4) Gerben Oling (NBI) - "Non-relativistic strings and limits of AdS/CFT"
5) Chiara Paletta (TCD) - "Integrable open quantum systems"
6) Davide Polvara (Durham) - "From tree-level perturbation theory to the S-matrix bootstrap in two dimensions"
7) Anton Pribytok (TCD) - "Deformed AdS Integrability and Free Fermion Condition"
–––––––––––––––––- Part of the London Integrability Journal Club. New participants are required to register using the form at integrability-london.weebly.com. The link will be emailed. Abstracts on the website.
Posted by: andrea