Workshop on foundations and constructive aspects of QFT

We are happy to welcome you at the 47th edition of the Local Quantum Physics workshop series.

Local Quantum Physics conferences concern mathematical aspects of quantum field theory (QFT). There is particular emphasis on approaches based on C*-algebras, that is algebraic QFT. Quantum field theories on Minkowski spacetime and on curved spacetimes are within the scope of the event. We also expect talks from neighbouring fields, such as Euclidean QFT, quantum statistical mechanics, non-commutative geometry, quantum gravity, quantum information theory and related topics.

We invite scientists working on fundamental aspects of quantum field theory to give presentations of their work (axiomatic, mathematical, constructive). Priority will be given to junior scientists.

There shall be approximately 15 talks, starting on Thursday, September 21, around 9 am and ending on Friday, September 22, around 5 pm. As a special session of the workshop, Thursday before noon there will be the 17th Colloquium "Mathematics and Foundations of Quantum Theory" co-organized with Dirk Deckert (LMU Munich), Felix Finster (Univ. Regensburg) and Peter Pickl (Univ. Tuebingen).

Invited speakers

Daniela Cadamuro* (University of Leipzig)
Jonathan Dimock* (SUNY at Buffalo)
David Hasler (University of Jena)
David Mitrouskas (IST Austria)
Steffen Polzer (University of Geneva)

*Online talk.


Wojciech Dybalski, Paweł Duch, Bartosz Biadasiewicz, Azam Jahandideh, Janik Kruse, Lena Heidenreich

If you have any questions regarding the workshop, please write to lqp47 at wmi dot amu dot edu dot pl.


Registration is free of charge but obligatory. We encourage participants to submit talks. Funding towards travel and accommodation is available for early career participants such as postdoctoral researchers, PhD and master students.

The deadline for talk application and financial support was August 1, 2023.

We encourage early registration preferably by the end of August 2023.

In order to register please fill in the registration form.

Program of the workshop

Thursday, September 21

Session: Non-relativistic QFT
9:00 9:55 David Hasler Non-Fock Ground States in the Translation-Invariant Nelson Model Revisited Non-Perturbatively
10:00 10:55 David Mitrouskas The Polaron at strong coupling
11:00 11:30 Coffee break
11:30 12:25 Steffen Polzer Renewal approach for the energy-momentum relation of the Polaron
12:30 13:00 Krzysztof Myśliwy On the global minimum of the energy-momentum relation for the polaron
13:00 14:30 Lunch break
Session: Quantum Energy Inequalities and Integrable Models
14:30 15:25 Daniela Cadamuro The massive modular Hamiltonian for a double cone
15:30 16:00 Coffee break
16:00 16:30 Markus Fröb Quantum energy inequality in the Sine-Gordon model
16:30 17:00 Karim Shedid Attifa Characterization of wedge-local observables in integrable quantum models with bound states
17:00 17:30 Diego Pardo Santos Null energy bounds for non-minimally coupled scalar fields
19:00 Conference dinner
(registration required)

Friday, September 22

Session: Gauge symmetries
9:00 9:30 Kasia Rejzner BV-BFV formalism: a blueprint for semi-local quantum physics
9:30 10:00 Karl-Henning Rehren Quantum General covariance
10:00 10:30 Gabriel Schmid Hadamard States for Maxwell Fields via Complete Gauge Fixing
10:30 11:15 Coffee break
Session: Propagators
11:15 11:45 Jan Dereziński Propagators on curved spacetimes
11:45 12:15 Christian Gaß Point potentials on Euclidean space, hyperbolic space and sphere in any dimension
12:15 13:30 Lunch break
Session: Entropy
13:30 14:00 Felix Finster The fermionic entanglement entropy and area laws
14:00 14:30 Albert Much Relative Entropy for a scalar field in a Noncommutative Minkowski Spacetime
14:30 15:00 Coffee break
Session: Renormalization
15:00 15:30 Martin Peev Localising Fermionic (S)PDE’s
15:30 16:00 Andras Laszlo The master Dyson-Schwinger equation and the Wilsonian renormalization group flows in a generally covariant setting
16:00 16:30 Coffee break
16:30 17:25 Jonathan Dimock Non-perturbative renormalization of the Gross-Neveu model

List of participants

(Updated on 19.09.2023)


Workshop venue

Faculty of Political Science and Journalism,
Adam Mickiewicz University,
Uniwersytetu Poznańskiego 5,
61-614 Poznań, Poland.

The talks will take place in the lecture hall 120 located on the first floor.

Getting to Poznań

Poznań is situated in central Europe halfway between Berlin and Warsaw. The city is well connected to major European cities. There are several direct trains from Berlin to Poznań and the journey takes about 2 hours 45 minutes. Flights arrive from many European cities including Frankfurt, London, Manchester, Milan, Munich and Rome.

Getting from city center to conference venue

The conference venue is located on the Morasko Campus situated in the northern part of Poznań. The campus can be reached by the trams 12, 14, 15, 16 and the bus 174. After getting off the tram or bus at the stop "Osiedle Sobieskiego" (this is the last stop) head north, cross the railway tracks and continue north-east. The walk from the stop "Osiedle Sobieskiego" to the Faculty of Political Science and Journalism takes about 10 minutes. Public transport tickets can be bought at the ticket machines accepting credit cards. Tickets have to be validated inside the tram/bus. We recommend buying singe tickets valid for 45 minutes, which cost 6 PLN.

If you are staying at the Hotel Mercure, go to the stop "Rondo Kaponiera" and take the tram 12, 14, 15 or 16. If you are staying at the Hotel Traffic, go to the stop "Wierzbięcice" and take the tram 12.


We suggest to use any of the popular hotel booking websites and look for the accommodation in the city center. As the prices are rapidly increasing we recommend to make the hotel reservation as soon as possible.