About Me

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. 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.

I use both analytical and numerical tools for modelling heavy ion collisions and out of equilibrium QCD matter. My PhD advisor Derek Teaney and I developed 3+1 viscous hydrodynamics code which is available to download at github

Contact Details

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


Heidelberg University

Institute for Theoretical Physics

Postdoctoral Researcher 2017 - 2019

Out-of-equilibrium QCD matter at extreme conditions.

Stony Brook University

Nuclear Theory Group

Research assistant 2014 - 2017

Fluctuations in ultra-relativistic heavy ion collisions.


Stony Brook University

Department of Physics and Astronomy

Physics PhD 2012 - 2017

Advisor Derek Teaney
Max Dresden Prize for outstanding theoretical thesis

Cambridge University

St Catharine's College

Master of Mathematics with distinction 2011 - 2012

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


My work is on initial stages and hydrodynamic evolution of heavy ion collisions. Click on figures below to find out more!


Heidelberg University

Head tutor Wintersemester 2017/18

Quantum Field Theory I

Stony Brook University

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

Student responses

  • Aleksas was always very welcoming and took the time to answer any questions the students had. I loved his strategy of reviewing the formulas before discussing that weeks homework — this form of review sincerely helped me succeed in this course. His quizzes were challenging but in a positive way and they were always relevant. I would love to see him become a professor one day and attain his career goals.

    from PHY 132 recitation evaluations
  • I think the instructor was more valuable than the course itself. Any TA for these recitations will help with homework problems and review tests, but there was a lot of effort put in with this TA. The practice quizzes and thoughtful explanations were a big help for learning and reviewing the material, and was the link he sent us to physics lectures by a professor at MIT.

    from PHY 132 recitation evaluations
  • The TA, Aleksas, is a wonderful TA. He would do a fantastic job in teaching the entire course. His expectation of the students is perfect, yet he somehow is also a fantastic teacher (even in giving quizzes, which is rare). He gives useful equations on the board and does not mind helping a student through a difficult problem, because he knows that some problems the students cannot do alone. Please give this man a medal.

    from PHY 132 recitation evaluations