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Program of Twinned workshop on "Quantum Field Theory and Topological Phases via Homotopy Theory and Operator Algebras"

For the abstracts click on the titles or see the list of abstracts.

Mon, 30 Jun 2025

13:00 - 14:00
Registration
14:00 - 15:00
MPIM Lecture Hall
Bruno Nachtergaele
Ground states of quantum lattice systems, I
15:00 - 15:30
MPIM Tea Room
Tea break
15:30 - 16:30
MPIM Lecture Hall
Michael Hopkins
Lattice models and topological quantum field theories I
16:30 - 16:45
MPIM Tea Room
Tea break
16:45 - 17:45
MPIM Lecture Hall
Pieter Naaijkens
Introduction to superselection sector theory I
17:45 - 18:00
MPIM Tea Room
Tea break
18:00 - 19:00
MPIM Lecture Hall
Alexei Kitaev
Local definitions of gapped Hamiltonians and topological and invertible states, I

Die, 01 Jul 2025

14:00 - 15:00
MPIM Lecture Hall
Bruno Nachtergaele
Ground states of quantum lattice systems, II
15:00 - 15:30
MPIM Tea Room
Tea break
15:30 - 16:30
MPIM Lecture Hall
Michael Hopkins
Lattice models and topological quantum field theories II
16:30 - 16:45
MPIM Tea Room
Tea break
16:45 - 17:45
MPIM Lecture Hall
Pieter Naaijkens
Introduction to superselection sector theory II
17:45 - 18:00
MPIM Tea Room
Tea break
18:00 - 19:00
MPIM Lecture Hall
Alexander Kitaev
Local definitions of gapped Hamiltonians and topological and invertible states, II
19:00 - 20:00
MPIM Tea Room
Finger food reception

Mit, 02 Jul 2025

14:00 - 15:00
MPIM Lecture Hall
Bruno Nachtergaele
Ground states of quantum lattice systems, III
15:00 - 15:30
MPIM Tea Room
Tea break
15:30 - 16:30
MPIM Lecture Hall
Michael Hopkins
Lattice models and topological quantum field theories III
16:30 - 16:45
MPIM Tea Room
Tea break
16:45 - 17:45
MPIM Lecture Hall
Pieter Naaijkens
Introduction to superselection sector theory III
17:45 - 18:00
MPIM Tea Room
Tea break
18:00 - 19:00
MPIM Lecture Hall
Alexander Kitaev
Local definitions of gapped Hamiltonians and topological and invertible states, III

Don, 03 Jul 2025

14:00 - 15:00
MPIM Lecture Hall
Bruno Nachtergaele
Ground states of quantum lattice systems, IV
15:00 - 15:30
MPIM Tea Room
Tea break
15:30 - 16:30
MPIM Lecture Hall
Michael Hopkins
Lattice models and topological quantum field theories IV
16:30 - 16:45
MPIM Lecture Hall
Tea break
16:45 - 17:45
MPIM Lecture Hall
Pieter Naaijkens
Introduction to superselection sector theory IV
17:45 - 18:00
MPIM Tea Room
Tea break
18:00 - 19:00
MPIM Lecture Hall
Alexander Kitaev
Local definitions of gapped Hamiltonians and topological and invertible states, IV

Fre, 04 Jul 2025

10:00 - 16:00
MPIM Lecture Hall
Open discussions

Mon, 07 Jul 2025

13:00 - 14:00
Registration
14:00 - 15:00
MPIM Lecture Hall
Jackson van Dyke
Moduli spaces of projective 3d TQFTs
15:00 - 15:30
MPIM Tea Room
Tea break
15:30 - 16:30
MPIM Lecture Hall
Lukasz Fidkowski
Non-invertible bosonic chiral symmetry on the lattice
16:30 - 16:45
MPIM Tea Room
Tea break
16:45 - 17:45
MPIM Lecture Hall
Matthias Ludewig
Generalized Kitaev Pairings and Higher Berry curvature in coarse geometry
17:45 - 18:00
MPIM Tea Room
Tea break
18:00 - 19:00
MPIM Lecture Hall
Theo Johnson-Freyd
Some thoughts about Kapustin’s cobordism conjecture

Die, 08 Jul 2025

14:00 - 15:00
MPIM Lecture Hall
David Reutter
On the categorical spectrum of topological quantum field theories
15:00 - 15:30
MPIM Tea Room
Tea break
15:30 - 16:30
MPIM Lecture Hall
Agnes Beaudry
An algebraic theory of planon-only fracton orders
16:30 - 16:45
MPIM Tea Room
Tea break
16:45 - 17:45
MPIM Lecture Hall
João Faria Martins
A categorification of Quinn's finite total homotopy TQFT with application to TQFTs and once-extended TQFTs derived from discrete higher gauge theory
17:45 - 18:00
MPIM Tea Room
Tea break
18:00 - 19:00
MPIM Lecture Hall
Emil Prodan
Mapping the landscape of frustration-free models
19:00 - 20:00
MPIM Tea Room
Finger food reception

Mit, 09 Jul 2025

14:00 - 15:00
MPIM Lecture Hall
Alexander Schenkel
C*-categorical prefactorization algebras for superselection sectors and topological order
15:00 - 15:30
MPIM Tea Room
Tea break
15:30 - 16:30
MPIM Lecture Hall
Constantin Teleman
Quantizing homotopy types

 

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