Exact Results in Quantum Theory & Gravity

Ścisłe rezultaty teorii kwantów i grawitacji

2021/2022


prof. dr hab. Jan Dereziński, prof. dr hab. Krzysztof Meissner
dr Wojciech Kamiński, dr Grzegorz Łach
<--Pasteura 5, room 1.40, Fridays 14:15 - < 16:00-->


On
Friday, 15.03.2024

Long Meng (École de Ponts, ParisTech)


will give an on-line talk (zoom, 14:15):

Rigorous justification of the Dirac-Fock model from Mittleman's definition of QED

Abstract: In this talk, we study the relationship between Dirac-Fock energyand electron-positron Hartree–Fock energy. We prove the longstanding conjecture due to Mittleman: the Dirac–Fock model is an approximation of QED when the fine structure constant α is small and the velocity of light c is large. We also prove some properties about Dirac-Fock model. In addition, we will talk about some perspectives on the Dirac many-body problem.


Link: https://uw-edu-pl.zoom.us/j/96778397094?pwd=bTZneUdLSS9ZUTJxWlhhbGRlQzdwUT09
Meeting ID: 967 7839 7094
Passcode: 090952

Date Speaker Title Slides
06.10.2023 Wojciech Kamiński (IFT) On classification of conformal anomalies
 
13.10.2023 Blażej Ruba (U. Copenhagen) Semiclassical analysis of SU(2)-invariant quantum channels
 
20.10.2023 no seminar (coincides with a PhD defence)
 
27.10.2023 Paweł Jakubczyk (IFT) Casimir amplitudes and scaling functions for Bose gases with nonstandard dispersions
 
03.11.2023 no seminar (1-2.11 are days off)
 
10.11.2023 Dawid Maskalaniec (FUW) Collinear limits and infinite tower of soft graviton symmetries
 
17.11.2023 Tom Devereaux (U. Stanford) Transport and Superconductivity in Strongly Interacting Quantum Matter: Role of Exact and Un-biased Numerical Simulations
 
24.11.2023 Mikołaj Korzyński (CFT) Redshift drift, position drift and parallax in general relativity
 
01.12.2023 Markus Froeb (U. Leipzig) All-order existence of and recursion relations for the operator product expansion in Yang-Mills theory
 
08.12.2023 Christian Gerard (U. Paris-Saclay) The Euclidean vacuum state for linearized gravity on de Sitter spacetime (on-line)
 
15.12.2023 Syed Naqvi (UJ) Chaos and Einstein-Rosen gravitational waves
 
12.01.2024 Christian Gerard (U. Paris-Saclay) The Euclidean vacuum state for linearized gravity on de Sitter spacetime II
 
19.01.2024 Andrzej Herdegen (UJ) Infrared structure beyond locality in electrodynamics
 
26.01.2024 Nicola Pinamonti (U. Genova) Existence and uniqueness of solutions of the semiclassical Einstein equation in cosmological models
 
01.03.2024 Nguyen Viet Dang (U. Paris-Sorbonne) The Phi43 measure on Riemannian manifolds. (on-line)
 
08.03.2024 Paweł Duch (UAM) Construction of Gross-Neveu model using Polchinski flow equation
 
15.03.2024 Long Meng (École de Ponts, ParisTech) Rigorous justification of the Dirac–Fock model from Mittleman's definition of QED. (on-line)
 
22.03.2024 Krzysztof Pachucki (FUW) Relativistic hydrogen atom with the finite nuclear mass.
 
05.04.2024
 
12.04.2024
 
19.04.2024
 
26.04.2024
 
17.05.2024
 
24.05.2024
 
07.06.2024
 

Past seminars:
2015-2016
2016-2017
2017-2018
2018-2019
2019-2020
2020-2021
2021-2022
2022-2023