I have a joint postdoctoral research position at Prof. Dr. Jürgen Berges and Dr. Stefan Flörchinger groups at the Institute for Theoretical Physics under the collaborative research project SFB 1225 ISOQUANT.

Previously I was a PhD student at Nuclear Theory group at Stony Brook University.

Dr. Aleksas Mazeliauskas

Postdoctoral Researcher

Institut für Theoretische Physik

Universität Heidelberg

Philosophenweg 12 / 110

69120 Heidelberg

e-mail: a.mazeliauskas at thphys.uni-heidelberg.de

office phone: +49-6221-54 9346

website: aleksas.eu

I am interested in high multiplicity particle collisions at LHC and RHIC, because they can create Quark Gluon Plasma — a new form of matter, where protons and neutrons melt into quarks and gluons. Astonishingly, these tiny droplets of matter interact so strongly, that they can be effectively described as a fluid — the perfect fluid. Understanding the properties of QCD matter at extreme conditions is the aim of my research. Click on figures below to find out more!

We use the hydro-kinetic equations developed previously to calculate the noise induced bulk visocity in non-conformal relativistic hydrodynamics.

NoiseWe develop a set of kinetic equations for hydrodynamic fluctuations which are equivalent to nonlinear hydrodynamics with noise. We use the hydro-kinetic equations to analyse thermal fluctuations for a Bjorken expansion, evaluating the contribution of thermal noise from the earliest moments and at late times.

NoiseWe use effective kinetic theory accurate in weak coupling to model system equilibration and smooth transition to hydrodynamics. We include two to two elastic gluon scatterings and one to two medium induced collinear splittings with LPM suppression. We obtain Green functions for equilibration of small energy and momentum perturbations around far-from-equilibrium background.

Initial stagesPCA is a statistical technique allowing to decompose multidimensional data into most significant components. We show that the subleading elliptic flow in peripheral collisions is dominated by the nonlinear mixing between the leading elliptic flow and radial flow fluctuations.

Collective dynamicsPCA is a statistical technique allowing to decompose multidimensional data into most significant components. We show that just two such components are sufficient to describe full two particle correlation matrix and relate the subleading component to radial excitation of initial geometry as shown above.

Collective dynamics-
Bulk viscosity from hydrodynamic fluctuations with relativistic hydro-kinetic theory

Yukinao Akamatsu (Osaka U.), Aleksas Mazeliauskas, U. (Heidelberg, ITP), Derek Teaney (SUNY, Stony Brook). Aug 18, 2017. 11 pp.

e-Print: arXiv:1708.05657 [nucl-th] | PDF | BibTeX -
A kinetic regime of hydrodynamic fluctuations and long time tails for a Bjorken expansion

Yukinao Akamatsu (SUNY, Stony Brook & Osaka U), Aleksas Mazeliauskas, Derek Teaney (SUNY, Stony Brook). Jun 24, 2016. 15 pp.

Published in Phys.Rev. C95 (2017) no.1, 014909 | DOI: 10.1103/PhysRevC.95.014909

e-Print: arXiv:1606.07742 [nucl-th] | PDF | BibTeX -
Initial conditions for hydrodynamics from weakly coupled pre-equilibrium evolution

Liam Keegan (CERN), Aleksi Kurkela (CERN & Stavanger U. ), Aleksas Mazeliauskas, Derek Teaney (SUNY, Stony Brook). May 13, 2016. 15 pp.

Published in JHEP 1608 (2016) 171 | CERN-TH-2016-117 | DOI: 10.1007/JHEP08(2016)171

e-Print: arXiv:1605.04287 [hep-ph] | PDF | BibTeX -
Fluctuations of harmonic and radial flow in heavy ion collisions with principal components

Aleksas Mazeliauskas, Derek Teaney (SUNY, Stony Brook<). Sep 24, 2015. 15 pp.

Published in Phys.Rev. C93 (2016) no.2, 024913 | DOI: 10.1103/PhysRevC.93.024913

e-Print: arXiv:1509.07492 [nucl-th] | PDF | BibTeX -
Subleading harmonic flows in hydrodynamic simulations of heavy ion collisions

Aleksas Mazeliauskas, Derek Teaney (SUNY, Stony Brook). Jan 13, 2015. 10 pp.

Published in Phys.Rev. C91 (2015) no.4, 044902 |DOI: 10.1103/PhysRevC.91.044902

e-Print: arXiv:1501.03138 [nucl-th] | PDF | BibTeX

Department of Physics and Astronomy

Physics PhD• *2012 - 2017*

Advisor Derek Teaney

Max Dresden Prize for outstanding theoretical thesis

St Catharine's College

Master of Mathematics with distinction • *2011 - 2012*

BA (Hons) Mathematics, 1st class• *2008 - 2011*

Head tutor • *Wintersemester 2017/18*

Quantum Field Theory I

Seminar course • *Summersemester 2018*

Recitation instructor• *Spring/Fall Semester 2014 *

Undergraduate electromagnetism and mechanics

Teaching assistant• *Fall/Spring Semester 2012/13 *

Undergraduate mechanics laboratory

David Fox Prize for Outstanding Teaching Assistant