About Me

Sebastian Zajac earned his PhD in Physics at the University of Silesia in Katowice. He is currently a theoretical physicist, an assistant professor and an associate dean for infrastructure at the Faculty of Mathematics and Natural Studies, Cardinal Stefan Wyszynski University in Warsaw (Poland).
He is a American Physical Society member. The focus of his research is mathematical physics, statistics and data analysis, in particular phenomenology of neutrino physics and geometry, topology and Category Theory in Quantum Mechanics and Quantum Field Theory. His latest publications center around the flavour problem in the field of neutrino physics. With prof. Piotr Sulkowski they are trying to characterize RNA and protein structures by their topological characteristics called genus.


Cardinal Stefan Wyszynski University
Faculty of Mathematics
and Natural Studies
ul. Woycickiego 1/3
01-938 Warsaw, Poland



University of Silesia in Katowice

Doctor of Philosophy 17.09.2013

Advisor: prof. dr hab. Marek Zralek
Accelerator neutrino oscillations and their non-standard interactions (PL). View

Master of Science 27.06.2007

Advisor: dr hab. Jerzy Król
Some geometrical and topological methods in classical and quantum field theory.(PL) View

Bechelor of Science 27.06.2005

Advisor: dr hab. Jacek Syska
Time Series analysis with ARMA and ARIMA processes. Application in SAS. (PL) View

Music School in Rybnik, I and II degree

Musician 2004

Advisor: Franciszek Prus
Accordeon class.


Chord diagrams category and its limit

W. Kubis, S.Z.
to appear

Seminar on 2018 Summer Conference on Topology and its Applications.

Seminar on 2017 Category Theory in Physics, Mathematics and Philosophy

Genus trace reveals the topological complexity and domain structure of biomolecules

S.Z., C. Geary, E. A. Andersen, P. Dabrowski-Tumanski, J.Sulkowska, P.Sulkowski
Scientific Reports volume 8, Article number: 17537 (2018)

Lepton Masses and Mixing in Two-Higgs-Doublet Model

P. Chaber, B. Dziewit, J. Holeczek, M. Richter, M. Zrałek, S.Z.
Physical Review D 98, 055007

Seminar from Discrete 2018 conference (Wienna)

Seminar from NOW 2018 Conference (Ostuni, Italy)

Poster from Neutrino 2018 Conference (Heidelberg)

Advanced Scorecard Builder - Python Package

S.Z. AMA Institute
PyPI library

Free python library for scorecard model builder.

The discrete family symmetries as the possible solution to the flavour problem

B.Dziewit, J.Holeczek, M.Richter, M.Zralek, S.Z.
Physics of Atomic Nuclei Vol. 80, No. 4 (09.2017)

Texture zeros in neutrino mass matrix

B.Dziewit, J.Holeczek, M.Richter, M.Zralek, S.Z.
Physics of Atomic Nuclei Vol. 80, No. 2 (07.2017)

The Flavour Problem and the Family Symmetry Beyond the Standard Model

B.Dziewit, J.Holeczek, M.Richter, M.Zralek, S.Z.
Acta Physica Polonica B46 (2015)

Attempts at Explaining Neutrino Masses and Mixings Using Finite Horizontal Symmetry Groups

B.Dziewit, M.Zralek, S.Z.
Acta Physica Polonica B44 (2013)

Majorana neutrino mass matrix with CP symmetry breaking

B.Dziewit, M.Zralek, S.Z.
Acta Physica Polonica B42 (2011)

The method of the likelihood and the Fisher information in the construction of physical models.

E.W.Piotrowski, J.Sładkowski, J.Syska, S.Z.
Physica Status Solidi B, 246 (2009)

Neutrino Oscillations in the case of general interactions

J.Syska, M.Zralek, S.Z.
Acta Physica Polonica B38 (2007)

Work experience

Data Analysis Expert

AMA Institute, Warsaw 10.2017

Associate Dean for Infrastructure

UKSW WMP. SNŚ Warsaw 09.2016


Warsaw School of Economics, Warsaw 02.2016

Assistant Professor

UKSW WMP.SNS, Warsaw 09.2015

Junior Front End Developer

Maxymiser Oracle, Warsaw 11.2015-02.2016

NCN Opus Grant - neutrino physics

University of Silesia, Katowice 04.2014-04.2018


UKSW WMP.SNS, Warsaw 10.2013-09.2015

Postdoc - On topology, interacting RNA and quantum physics

Warsaw University, Warsaw 09.2013-09.2014

Lecturer - Webpage programming in PHP and JS

GoWork, Warsaw 07.2013-01.2015

Statistical Analyst

Biostat, Rybnik 11.2011-01.2012

Software tester SI WCPR system

Wasko, Gliwice 07.2011-09.2011


  • Data processing in SAS: part I (SAS 2017)
  • Data processing in SAS: macro language (SAS 2017)
  • Introduction to Machine Learning with Python (Sages 2017)
  • BigData Analysis with Apache Spark (ESSAM-ICM 2016)
  • Designing and creating OLAP cubes (SAS 2016)
  • Business analysis with SAS Visual Analytics (SGH, SAS 2016)
  • Introduction to Big Data and Apache Hadoop (Sages 2014)


  • Quantum fields, knots, and strings
    University of Warsaw,
    September 24-28, 2018, Warsaw, PL

    This conference is devoted to relations between quantum field theory and string theory one hand, and mathematical knot theory and random matrix models on the other hand. Surprising connections between these areas of research have been found in last years. In the conference we will summarize important recent developments in this context and try to set the goals for the future research. Topics considered in the conference include: supersymmetric gauge theories, BPS states, topological string theory, integrability, homological knot invariants, matrix models, topological recursion.

    Quantum Field Theory, Topology
    November, 26-30, 2018, Vienna, Austria

    This is the 6th Symposium on Prospects in the Physics of Discrete Symmetries, DISCRETE 2018, the latest of the DISCRETE conference series, which this year will take place in Vienna at the Austrian Academy of Sciences.

    Quantum Field Theory, High Energy Physics