Alexander Karl Rothkopf

Professor i fysikk

Alexander Karl Rothkopf

Kontakt

Telefon: 51832021

E-post: alexander.rothkopf@uis.no

Rom: KE E-537

Sted: KE-E 537

Organisasjonsenhet

Det teknisk-naturvitenskapelige fakultet

Institutt for matematikk og fysikk

Kort om meg

Research Profile:

I work on elucidating the real-time properties of strongly coupled quantum systems, such as e.g. the quark-gluon plasma created in relativistic heavy-ion collisions. To this end I study the spectral properties of bound states and single particles in QCD and scalar theories. The non-perturbative nature of the problems at hand leads me to use predominantly numerical methods, such as lattice QCD. A particular interest lies in the extraction of spectral functions from Euclidean correlator data using Bayesian inference.

Selected ongoing research projects:

1) Determination of the heavy quark potential from realistic lattice QCD simulations with novel machine-learning assisted spectral extraction methods ( with Gaurang Parkar (UiS), Rasmus N. Larsen (UiS), Peter Petreczky (BNL), Swagato Mukherjee (BNL))

2) Development of improved discretization schemes for the accurate simulation of Open-Quantum-Systems dynamics ( with J. Nordström (U. Linköping) )

3) Development of novel machine-learning assisted real-time simulation strategies for strongly correlated quantum fields ( with D. Alvestad (UiS) )

4) Elucidating the real-time dynamics of heavy quarkonium states based on the Open-Quantum-Systems framework

Teaching:

1) Introductory Physics: Mechanics

This course provides a thorough introduction to Newtonian mechanics, covering Newton's laws, the concepts of energy, linear momentum and angular momentum, as well as oscillations and wave phenomena.

2) Introduction to Quantum Mechanics

This course provides the students with a first introduction to the field of quantum mechanics. It both allows students to get familiar with the novel concepts of quantum mechanics and to train the computational skills needed to solve simple problems.

3) Quantum particles and fields on the lattice 

This course provides a theoretical and practical introduction to the description of quantum particles and fields in a discretized setting, relevant for e.g. numerical simulations of the strong interactions (lattice QCD). Besides regular lectures the course features an hands-on tutorial in which students themselves implement simulation strategies.

 

Publikasjoner
  • Vitenskapelige publikasjoner
  • Bøker og kapitler
  • Formidling
    • Rothkopf, Alexander Karl; Nordström, Jan

      (2024)

      The crucial role of Lagrange multipliers in a space-time symmetry preserving discretization scheme for IVPs.

      Journal of Computational Physics.

      ISSN 0021-9991.

      Volum 511.

      s.1-6.

      DOI: 10.1016/j.jcp.2024.113138

    • Rothkopf, Alexander Karl

      (2023)

      Zero Temperature: Ultracold Matter.

      Pint of Science 2023;

      2023-05-23 - .

    • Rothkopf, Alexander Karl

      (2023)

      The Science of Fusion Energy.

      Wonderful World;

      2023-06-02 - .

    • Rothkopf, Alexander Karl

      (2023)

      Machine Learning assisted real-time Complex Langevin.

      3rd Nordic Lattice Meeting;

      2023-08-06 - 2023-08-08.

    • Rothkopf, Alexander Karl

      (2023)

      Machine Learning assisted real-time simulations with Complex Langevin.

      Machine Learning for Lattice Field Theory and Beyond;

      2023-08-26 - .

    • Rothkopf, Alexander Karl

      (2023)

      Towards space-time symmetry preserving lattice discretization schemes.

      The 40th International Symposium on Lattice Field Theory;

      2023-08-01 - .

    • Rothkopf, Alexander Karl

      (2023)

      Lattice real-time simulations with machine learned optimal kernels.

      The 40th International Symposium on Lattice Field Theory;

      2023-08-03 - .

    • Rothkopf, Alexander Karl

      (2023)

      A variational approach to discretised initial value problems.

      The annual NPACT meeting;

      2023-08-08 - .

    • Rothkopf, Alexander Karl

      (2023)

      Machine-learning assisted complex Langevin real-time simulations.

      Fysikermøtet 2023;

      2023-08-09 - .

    • Rothkopf, Alexander Karl

      (2023)

      Heavy Flavor in QCD matter and the lattice.

      RHIC Beam Energy Scan Seminar Series;

      2023-05-02 - .

    • Rothkopf, Alexander Karl

      (2023)

      Complex Langevin real-time simulations and ML.

      Machine Learning Approaches in Lattice QCD;

      2023-03-02 - .

    • Rothkopf, Alexander Karl

      (2023)

      Bayesian Methods.

      Methods of Effective Field Theory and Lattice Field Theory Summerschool;

      2023-07-17 - .

    • Rothkopf, Alexander Karl

      (2022)

      Quantum Computing.

      Pint of Science 2022 Stavanger;

      2022-05-09 - .

    • Rothkopf, Alexander Karl

      (2022)

      Conserving Lattice Gauge Theory for Finite Systems .

      Nordic Lattice Meeting 2022 (spring);

      2022-01-10 - 2022-01-14.

    • Rothkopf, Alexander Karl

      (2022)

      Open-Quantum-Systems: Precision Thermometry at the Extremes.

      Centre for Theoretical & Mathematical Physics Seminar;

      2022-03-18.

    • Rothkopf, Alexander Karl

      (2022)

      Heavy quark potential from Euclidean & real-time lattices .

      RIKEN-BNL Research Center Seminar;

      2022-03-24.

    • Rothkopf, Alexander Karl

      (2022)

      In-medium heavy quarkonium from complex potential to Lindblad equation.

      Center for Theoretical and Mathematical Physics Seminar;

      2022-03-25.

    • Rothkopf, Alexander Karl

      (2022)

      Open-Quantum-Systems: Precision Thermometry at the Extremes .

      ALICE Seminar;

      2022-04-22.

    • Rothkopf, Alexander Karl

      (2022)

      The inverse problem challenge in Lattice QCD.

      Bayesian Inference in High Energy Physics Workshop;

      2022-05-25 - 2022-05-27.

    • Rothkopf, Alexander Karl

      (2022)

      Open-Quantum-Systems: Precision Thermometry at the Extremes .

      Nuclear Physics Theory Seminar;

      2022-07-14.

    • Rothkopf, Alexander Karl

      (2022)

      Inverse problems, real-time dynamics and lattice simulations.

      The 15th Quark Confinement and the Hadron Spectrum Conference;

      2022-08-01 - 2022-08-06.

    • Rothkopf, Alexander Karl

      (2022)

      Towards symmetric discretization schemes via weak boundary conditions.

      The 39th International Symposium on Lattice Field Theory;

      2022-08-08 - 2022-08-13.

    • Rothkopf, Alexander Karl

      (2022)

      Towards symmetric higher order discretization schemes on the lattice.

      Nordic Lattice Meeting 2022 (summer);

      2022-08-22 - 2022-08-24.

    • Rothkopf, Alexander Karl

      (2022)

      Towards robust real-time dynamics with Complex Langevin.

      UCT Physics Theory Seminar;

      2022-09-09.

    • Rothkopf, Alexander Karl

      (2022)

      Open-quantum-systems approach to in-medium heavy quarkonium real-time dynamics.

      The 28th International Nuclear Physics Conference;

      2022-09-11 - 2022-09-16.

    • Alvestad, Daniel; Rothkopf, Alexander Karl; Larsen, Rasmus Normann

      (2022)

      Kernel controlled real-time Complex Langevin simulation.

      The 39th International Symposium on Lattice Field Theory;

      2022-08-08 - 2022-08-13.

    • Alvestad, Daniel; Rothkopf, Alexander Karl; Larsen, Rasmus Normann

      (2022)

      Kernel controlled real-time Complex Langevin simulation.

      XVth Quark Confinement and the Hadron Spectrum;

      2022-08-01 - 2022-08-06.

    • Alvestad, Daniel; Rothkopf, Alexander Karl; Larsen, Rasmus Normann

      (2022)

      Kernel controlled real-time Complex Langevin simulation.

      The 8th International Workshop on the Sign Problem in QCD and Beyond;

      2022-09-05 - 2022-09-09.

    • Alvestad, Daniel; Rothkopf, Alexander Karl; Larsen, Rasmus Normann

      (2022)

      Kernel controlled real-time Complex Langevin simulation.

      Nordic Lattice meeting 2022;

      2022-08-22 - 2022-08-24.

    • Parkar, Gaurang Yatin; Rothkopf, Alexander Karl; Larsen, Rasmus Normann; Mukherjee, Swagato; Weber, Johannes Heinrich; Kaczmarek, Olaf; Petreczky, Peter; Hoying, daniel; Bazavov, Alexei

      (2022)

      Complex potential at T>0 from fine lattices.

      The 39th International Symposium on Lattice Field Theory ;

      2022-08-08 - 2022-08-13.

    • Parkar, Gaurang Yatin; Rothkopf, Alexander Karl; Larsen, Rasmus Normann; Petreczky, Peter; Mukherjee, Swagato; Kaczmarek, Olaf; Bala, Dibyendu; Weber, Johannes Heinrich

      (2022)

      Static quark anti-quark interactions at non-zero temperature from lattice QCD.

      The XVth Quark confinement and the Hadron spectrum conference;

      2022-08-01 - 2022-08-06.

    • Parkar, Gaurang Yatin; Larsen, Rasmus Normann; Rothkopf, Alexander Karl; Kaczmarek, Olaf; Petreczky, Peter; Weber, Johannes Heinrich; Mukherjee, Swagato; Hoying, daniel; Bazavov, Alexei

      (2022)

      Complex potential at T>0 from fine lattices.

      Nordic Lattice Meeting;

      2022-08-22 - 2022-08-24.

    • Syse, Helleik Rosenvinge; Assadi, Mohsen; Rothkopf, Alexander Karl; Arild, Øystein; Johansen, Brage W.

      (2022)

      Energy Technologies: Barriers and Solutions.

      Crossrads & Transitions, Conference on Energy, Environment and Society;

      2022-12-05.

    • Broekel, Tom; Sareen, Siddharth; Solheim, Marte Cecilie Wilhelmsen; By, Rune Todnem; Rothkopf, Alexander Karl

      (2021)

      Dog Eat Dog.

    • Rothkopf, Alexander Karl

      (2021)

      Habemus ReV - Proper heavy quark potential in classical lattice gauge theory.

      Stavanger - Heidelberg Lattice & Machine Learning Seminar;

      2021-01-19.

    • Rothkopf, Alexander Karl

      (2021)

      Open-Quantum-Systems: Precision Thermometry at the Extremes.

      Physics Seminar;

      2021-02-01.

    • Rothkopf, Alexander Karl

      (2021)

      Conserving Lattice Gauge Theory for Finite Systems.

      Stavanger - Heidelberg Lattice & Machine Learning Seminar;

      2021-02-24.

    • Rothkopf, Alexander Karl

      (2021)

      Towards dissipative in-medium QQ dynamics from the complex interquark potential.

      The 14th International Workshop on Quarkonium Dynamics (QWG2021);

      2021-03-19.

    • Rothkopf, Alexander Karl

      (2021)

      Stable solvers for real-time Complex Langevin.

      High Energy Physics Seminar;

      2021-05-27.

    • Rothkopf, Alexander Karl

      (2021)

      Strongly interacting systems at finite T: results from the lattice.

      Quarkonia meet Dark Matter;

      2021-06-18.

    • Rothkopf, Alexander Karl

      (2021)

      The Science of Fission Energy.

      The Science of Energy;

      2021-06-23.

    • Rothkopf, Alexander Karl

      (2021)

      Open Quantum Systems - Quarkonia.

      2021 ALICE week;

      2021-06-27.

    • Rothkopf, Alexander Karl

      (2021)

      Conserving Lattice Gauge Theory for Finite Systems.

      The XXXVIIIth International Symposium on Lattice Field Theory;

      2021-07-26 - 2021-07-30.

    • Rothkopf, Alexander Karl

      (2021)

      Dying Particles in the Little Bang.

      Pint of Science 2021;

      2021-05-19 - 2021-05-21.

    • Rothkopf, Alexander Karl

      (2021)

      Quarkonia.

      ALICE 3 workshop;

      2021-10-18 - 2021-10-19.

    • Rothkopf, Alexander Karl

      (2021)

      Open-Quantum-Systems: Precision Thermometry at the Extremes.

      Physics seminar;

      2021-10-28.

    • Rothkopf, Alexander Karl

      (2021)

      Heavy-quark potential from classical statistical real-time lattice simulations.

      QGP characterisation with heavy flavor probes;

      2021-11-15 - 2021-11-18.

    • Rothkopf, Alexander Karl

      (2021)

      Open-Quantum-Systems: Precision Thermometry at the Extremes .

      Theoretical Physics Colloquium;

      2021-11-24.

    • Rothkopf, Alexander Karl

      (2021)

      A thermometer for the little bang.

      Researcher Breakfast;

      2021-10-07.

    • Nielsen, Alex Bentley; Rothkopf, Alexander Karl

      (2021)

      Strålingsbalansen.

      Informasjonsmøte;

      2021-11-24.

    • van der Giezen, Mark; Rothkopf, Alexander Karl; Eggebø, Olav; Berland, Unni

      (2020)

      Nobelprisene – ​ en foredragsserie fra UiS​.

      Nobelprisene – ​ en foredragsserie fra UiS​;

      2020-12-09.

    • Rothkopf, Alexander Karl

      (2020)

      Open-Quantum-Systems: Precision Thermometry at the Extremes.

      Heavy-Ion Tea Theory Seminar;

      2020-11-24.

    • Rothkopf, Alexander Karl

      (2020)

      Open-Quantum-Systems: Precision Thermometry at the Extremes.

      Theory Seminar;

      2020-12-10.

    • Rothkopf, Alexander Karl

      (2019)

      Quarkonium real-time dynamics in heavy-ion collisions .

      Fellesseminar;

      2019-02-15.

    • Rothkopf, Alexander Karl

      (2019)

      From Japan to Norway and onwards to the Big Bang.

      3rd Norway-Japan Academic Network Seminar;

      2019-02-06.

    • Rothkopf, Alexander Karl

      (2019)

      Quarkonium theory.

      2019 RHIC & AGS User Meeting Heavy Flavor Workshop;

      2019-06-04.

    • Rothkopf, Alexander Karl

      (2019)

      Towards in medium quarkonium from first principles.

      The 3rd annual NPACT Meeting;

      2019-08-06.

    • Rothkopf, Alexander Karl

      (2019)

      Tackling inverse problems on the lattice: from quarkonium spectral functions to PDFs.

      Theoretical Nuclear Physics Group Seminar;

      2019-08-23.

    • Rothkopf, Alexander Karl

      (2019)

      Towards in medium Quarkonium dynamics from first principles.

      Nuclear Theory Seminar;

      2019-08-28.

    • Rothkopf, Alexander Karl

      (2018)

      Quarkonium.

      XXVIIth International Conference on Ultra-relativistic Nucleus-Nucleus Collisions;

      2018-05-13.

    • Rothkopf, Alexander Karl

      (2018)

      Realistic in-medium heavy-quark potential from high statistics lattice QCD simulations.

      XXVIIth International Conference on Ultra-relativistic Nucleus-Nucleus Collisions;

      2018-05-14 - 2018-05-19.

    • Rothkopf, Alexander Karl

      (2018)

      Quarkonium realtime dynamics.

      N-PACT meeting 2018;

      2018-05-28 - 2018-05-31.

    • Rothkopf, Alexander Karl

      (2018)

      Real-time dynamics from lattice QCD: prospects and challenges.

      NuPECC - Mini Workshop "Nuclear Physics in Norway";

      2018-06-15.

    • Rothkopf, Alexander Karl

      (2018)

      Bayesian techniques and applications to QCD.

      XIIIth Quark Confinement and the Hadron Spectrum Conference;

      2018-07-31 - 2018-08-06.

    • Rothkopf, Alexander Karl

      (2018)

      In-medium heavy quarkonium from lattice NRQCD.

      XIIIth Quark Confinement and the Hadron Spectrum Conference;

      2018-07-31 - 2018-08-06.

    • Rothkopf, Alexander Karl

      (2018)

      Quarkonium at high temperatures from the lattice.

      MIAPP: Interface of Effective field theories and Lattice Gauge theory;

      2018-10-15 - 2018-10-19.

    • Rothkopf, Alexander Karl

      (2018)

      Quarkonium production in the QGP .

      XVIIIth Zimányi School and Winter Workshop 2018 ;

      2018-12-03 - 2018-12-07.

  • Kunstnerisk produksjon
    • Rothkopf, Alexander Karl; van der Giezen, Mark; Lechterbeck, Jutta; Pyrihova, Eva; Nielsen, Alex Bentley

      (2021)

      Where the sun don't shine.

    • Rothkopf, Alexander Karl; van der Giezen, Mark; Ersdal, Hege Langli; Bouder, Frederic Emmanuel

      (2021)

      Til death do us part.

    • Rothkopf, Alexander Karl; Eckhard, Elsen

      (2021)

      The CERN Laboratory.

    • Rothkopf, Alexander Karl; Quigg, Chris

      (2021)

      Symmetries in Nature.

    • Rothkopf, Alexander Karl; Kang, Zhongbo

      (2021)

      The Strong Force.

  • Kommersialisering
  • Cristin hovedlogo, Cristin current research information system in Norway