Akcja protestacyjna doktorantów

Remigiusz Durka presents

Short about me:

• My name is Remigiusz Durka. I'm 27 (good age for publishing some articles from physics).
• Lately I was co-organizer of the XXV Max Born Symposium "The Planck Scale 2009" held in Wroclaw.
• I've got my master degree in 2006. Earlier I have been for half year in Amsterdam on Socrates Exchange Program in Universitet van Amsterdam, Vrije Univeristet, NIKHEF and also at Leiden Univesity.

My articles:

• Supergravity as a constrained BF theory, (published in Phys. Rev. D 81, 045022)

ABSTRACT: In this paper we formulate ${\cal N}=1$ supergravity as a constrained $BF$ theory with $OSp(4|1)$ gauge superalgebra. We derive the modified supergravity Lagrangian that, apart from the standard supergravity with negative cosmological constant, contains terms proportional to the (inverse of) Immirzi parameter. Although these terms do not change classical field equations, they might be relevant in quantum theory. We briefly discuss the perturbation theory around the supersymmetric topological vacuum.

• Hamiltonian analysis of SO(4,1) constrained BF theory

ABSTRACT: In this paper we discuss canonical analysis of SO(4,1) constrained BF theory. The action of this theory contains topological terms appended by a term that breaks the gauge symmetry down to the Lorentz subgroup SO(3,1). The equations of motion of this theory turn out to be the vacuum Einstein equations. By solving the B field equations one finds that the action of this theory contains not only the standard Einstein-Cartan term, but also the Holst term proportional to the inverse of the Immirzi parameter, as well as a combination of topological invariants. We show that the structure of the constraints of a SO(4,1) constrained BF theory is exactly that of gravity in Holst formulation. We also briefly discuss quantization of the theory.

Affiliation:

• Division of Fundamental Interactions Theory and Quantum Gravity (Institute of Theoretical Physics at Wroclaw University)

Supervisor:

• prof. J. Kowalski-Glikman

My interests and field of studies:

• BF theories (perturbation, cosmological BF, BF as supergravity)
• canonical analysis of the constrainted systems
• quantum gravity

Hobby and activities:

• organizing conferences (SIKE!) ;)
• 4D and 5D Rubik Cubes (check end of the page)
• My records on Hall of Fame, Hall of Insanity, Hall of 4D Fame and Hall of Shortest Solutions

New presentations

• Topological invariants and BF theory
• Quantization of string theory

Some popularization work:

• Great presentation about Begining of the Universe (14 MB)

Old presentations

Some of my presentation from my master studies:

• Stanislaw Ulam
• Cosmology
• Higgs Model
• Higher Dimensional Puzzles
• Master Thesis

I can also recommend a fairy tale I wrote few years ago:

• Bajka matematyczno-fizyczna (only Polish version)

Soon I will try to add some of templates used to make these files.

Some useful things

During studies it's good to gain some abilities and gather some tools which can be really helpful in your daily (scientific) life:

• Write scientific and beautiful documents (Introduction to LaTeX)
• Gigapedia.com Index of the many many books
• How to become a good theoretical physists by G'Hooft
• K3D surf to explore mathematical surfaces
• Inkscape great program for creating pictures (tutorials)
• Don't forget to relax: Abstrusegoose, PhD Comic, xkcd

I also recommend checking links on the right.