Eero Aleksi Kurkela

Førsteamanuensis i teoretisk fysikk

Eero Aleksi Kurkela

Kontakt

E-post: aleksi.kurkela@uis.no

Sted: E 540

Organisasjonsenhet

Det teknisk-naturvitenskapelige fakultet

Institutt for matematikk og fysikk

Kort om meg

I study how ordinary matter behaves in extraordinary conditions. Ultrarelativistic nuclear collisions in modern particle colliders -- such as the LHC at CERN -- smash together atomic nuclei creating a fireball so hot (about a million times the temperature of the core of the sun!) that protons and neutrons melt to their fundamental constituents and a new form of elementary particle matter, Quark Matter, is created. This soup of elementary particles filled the universe when it was in its infancy and it has been conjectured that it may be found in the cores of the most dense astrophysical objects, in the cores of neutron stars. 

How quark matter behaves and under which conditions it is formed is governed by the fundamental theory of Quantum Chromodynamics  or QCD -- the part of the Standard Model of particle physics responsible for the strong nuclear interactions. My research utilises QCD to model the nuclear collisions and cores of neutron stars and leverages the synergies between particle physics and astrophysics. 

 

SELECTED PUBLICATIONS:

On phenomenology of neutron stars and quark matter:

- E. Annala, T. Gorda, A. Kurkela, J. Nättilä and A. Vuorinen, Evidence for quark-matter cores in massive neutron stars, Nature Phys. (2020), [arXiv:1903.09121 [astro-ph.HE]].

- T. Gorda, A. Kurkela, P. Romatschke, M. Säppi and A. Vuorinen, Next-to-Next-to-Next-to-Leading Order Pressure of Cold Quark Matter: Leading Logarithm, Phys. Rev. Lett. 121 (2018) no.20, 202701,  [arXiv:1807.04120 [hep-ph]].

- E. Annala, T. Gorda, A. Kurkela and A. Vuorinen, Gravitational-wave constraints on the neutron-star-matter Equation of State, Phys. Rev. Lett. 120 (2018) no.17, 172703, [arXiv:1711.02644 [astro-ph.HE]].

- A. Kurkela and A. Vuorinen, Cool quark matter, Phys. Rev. Lett. 117 (2016) no.4, 042501[arXiv:1603.00750 [hep-ph]].

On far-from-equilibrium quantum fields and thermalization:

- D. Almaalol, A. Kurkela and M. Strickland, Non-equilibrium attractor in high-temperature QCD plasmas, Phys. Rev. Lett. 125 (2020) no.12, 122302, [arXiv:2004.05195 [hep-ph]]. 

- A. Kurkela, W. van der Schee, U.A. Wiedemann and B. Wu, Early- and Late-Time Behavior of Attractors in Heavy-Ion Collisions, Phys. Rev. Lett. 124 (2020) no.10, 102301 [arXiv:1907.08101 [hep-ph]].

- A. Kurkela and E. Lu, Approach to Equilibrium in Weakly Coupled Non-Abelian Plasmas, Phys. Rev. Lett. 113 (2014)no.18, 182301[arXiv:1405.6318 [hep-ph]].

On phenomenology of ultrarelativistic heavy-ion collisions:

- A. Kurkela and A. Mazeliauskas, Chemical Equilibration in Hadronic Collisions, Phys. Rev. Lett. 122 (2019), 142301 [arXiv:1811.03040 [hep-ph]]. 

- A. Kurkela, A. Mazeliauskas, J. F. Paquet, S. Schlichting and D. Teaney, Matching the Nonequilibrium Initial Stage of Heavy Ion Collisions to Hydrodynamics with QCD Kinetic Theory, Phys. Rev. Lett. 122 (2019) no.12, 122302,[arXiv:1805.01604 [hep-ph]].

- A. Kurkela and Y. Zhu, Isotropization and hydrodynamization in weakly coupled heavy-ion collisions, Phys. Rev. Lett. 115(2015) no.18, 182301[arXiv:1506.06647 [hep-ph]].

Some news articles and interviews in international media:

Neutron stars show their cores, home.cern 2020 

Why are big neutron stars like Tootsie Pops?, Popular Science 2020 

Neutron stars may contain free quarks, physicsworld 2020 

Gravitational waves shed light on neutron star interiors, Sky and Telescope 2018 

Gravitational Waves Shed Light on Dense Nuclear Matter, APS physics 2018 

Physicists prepare to detect gravitational waves from neutron star collisions, phys.org 2016 

Gravitational Waves to Crack Neutron Star Mystery, Space.org 2016 

Cool quarks, APS physics 2010

 

WORK EXPERIENCE

- 2015- Associate professor at UiS

- 2015-2020 Staff member at CERN

- 2013-2015 Marie Curie senior fellow at CERN

- 2010-2013 Postdoctoral research fellow at McGill University

- 2008-2010 Postdoctoral research fellow at ETH Zürich 

- 2006-2008 PhD in physics at University of Helsinki

Publikasjoner

Vitenskapelige publikasjoner

(2024)

AMY Lorentz invariant parton cascade: the thermal equilibrium case.

European Physical Journal C.

ISSN 1434-6044.

Volum 84.

Hefte 1.

DOI: 10.1140/epjc/s10052-024-12424-2

(2024)

Limiting attractors in heavy-ion collisions.

Physics Letters B.

ISSN 0370-2693.

Volum 852.

DOI: 10.1016/j.physletb.2024.138623

(2024)

Astrophysical Equation-of-State Constraints on the Color-Superconducting Gap.

Physical Review Letters.

ISSN 0031-9007.

Volum 132.

Hefte 26.

DOI: 10.1103/PhysRevLett.132.262701

(2024)

Jet quenching parameter in QCD kinetic theory.

Physical Review D.

ISSN 2470-0010.

Volum 110.

Hefte 3.

DOI: 10.1103/PhysRevD.110.034019

(2024)

Limiting attractors in heavy-ion collisions—The interplay between bottom-up and hydrodynamic attractors.

The European Physical Journal Conferences.

ISSN 2101-6275.

Volum 296.

Hefte 10004.

DOI: 10.1051/epjconf/202429610004

(2024)

Heavy quark momentum diffusion coefficient during hydrodynamization via effective kinetic theory.

The European Physical Journal Conferences.

ISSN 2101-6275.

Volum 296.

Hefte 09001.

DOI: 10.1051/epjconf/202429609001

(2023)

Degenerate fermionic matter at N3LO: Quantum electrodynamics.

Physical Review D.

ISSN 2470-0010.

Volum 107.

Hefte 3.

DOI: 10.1103/PhysRevD.107.L031501

(2023)

Bayesian uncertainty quantification of perturbative QCD input to the neutron-star equation of state.

Journal of High Energy Physics (JHEP).

ISSN 1126-6708.

Volum 2023.

Hefte 6.

DOI: 10.1007/JHEP06(2023)002

Gorda, Tyler; Komoltsev, Oleg; Kurkela, Eero Aleksi

(2023)

Ab-initio QCD Calculations Impact the Inference of the Neutron-star-matter Equation of State.

The Astrophysical Journal (ApJ).

ISSN 0004-637X.

Volum 950.

Hefte 2.

DOI: 10.3847/1538-4357/acce3a

(2023)

Constraints on Strong Phase Transitions in Neutron Stars.

The Astrophysical Journal (ApJ).

ISSN 0004-637X.

Volum 955.

Hefte 2.

DOI: 10.3847/1538-4357/aceefb

Annala, Eemeli; Gorda, Tyler; Hirvonen, Joonas; Komoltsev, Oleg; Kurkela, Eero Aleksi; Nättilä, Joonas; Vuorinen, Aleksi

(2023)

Strongly interacting matter exhibits deconfined behavior in massive neutron stars.

Nature Communications.

ISSN 2041-1723.

Volum 14.

Hefte 1.

DOI: 10.1038/s41467-023-44051-y

(2022)

Multimessenger Constraints for Ultradense Matter.

Physical Review X.

ISSN 2160-3308.

Volum 12.

Hefte 1.

DOI: 10.1103/PhysRevX.12.011058

(2022)

Thermalization of non-Abelian gauge theories at next-to-leading order.

Physical Review D.

ISSN 2470-0010.

Volum 105.

Hefte 5.

DOI: 10.1103/PhysRevD.105.054031

Komoltsev, Oleg; Kurkela, Eero Aleksi

(2022)

How Perturbative QCD Constrains the Equation of State at Neutron-Star Densities.

Physical Review Letters.

ISSN 0031-9007.

Volum 128.

Hefte 20.

DOI: 10.1103/PhysRevLett.128.202701

(2022)

Fundamental Physics in the Gravitational-Wave Era.

Nuclear Physics News.

ISSN 1061-9127.

Volum 32.

Hefte 1.

s.16-19.

DOI: 10.1080/10619127.2021.1988473

(2021)

Predicting parton energy loss in small collision systems.

Physical Review C.

ISSN 2469-9985.

Volum 103.

Hefte 5.

s.1-18.

DOI: 10.1103/PhysRevC.103.054903

(2021)

Cold quark matter at N3LO: Soft contributions.

Physical Review D.

ISSN 2470-0010.

Volum 104.

Hefte 7.

s.1-43.

DOI: 10.1103/PhysRevD.104.074015

(2021)

Collective flow in single-hit QCD kinetic theory.

Journal of High Energy Physics (JHEP).

ISSN 1126-6708.

Volum 2021.

Hefte 11.

s.1-29.

DOI: 10.1007/JHEP11(2021)216

(2021)

Discovering Partonic Rescattering in Light Nucleus Collisions.

Physical Review Letters.

ISSN 0031-9007.

Volum 126.

DOI: 10.1103/PhysRevLett.126.192301

(2021)

Soft Interactions in Cold Quark Matter ().

Physical Review Letters.

ISSN 0031-9007.

Volum 127.

Hefte 16.

DOI: 10.1103/PhysRevLett.127.162003

(2021)

Broad excitations in a 2+1D overoccupied gluon plasma.

Journal of High Energy Physics (JHEP).

ISSN 1126-6708.

Volum 225.

Hefte 5.

DOI: 10.1007/JHEP05(2021)225

(2020)

Nonequilibrium attractor in high-temperature QCD plasmas.

Physical Review Letters.

ISSN 0031-9007.

Volum 125.

Hefte 12.

DOI: 10.1103/PhysRevLett.125.122302

(2020)

Heavy quark diffusion in an overoccupied gluon plasma.

Journal of High Energy Physics (JHEP).

ISSN 1126-6708.

Volum 2020.

Hefte 9.

DOI: 10.1007/JHEP09(2020)077

(2020)

Perturbative thermal QCD: Formalism and applications.

Physics reports.

ISSN 0370-1573.

Volum 880.

s.1-73.

DOI: 10.1016/j.physrep.2020.07.004

(2019)

Chemical equilibration in hadronic collisions.

Physical Review Letters.

ISSN 0031-9007.

Volum 122.

Hefte 14.

DOI: 10.1103/PhysRevLett.122.142301

(2019)

Chemical equilibration in weakly coupled QCD.

Physical Review D.

ISSN 2470-0010.

Volum 99.

Hefte 5.

DOI: 10.1103/PhysRevD.99.054018

(2019)

Matching the Nonequilibrium Initial Stage of Heavy Ion Collisions to Hydrodynamics with QCD Kinetic Theory.

Physical Review Letters.

ISSN 0031-9007.

Volum 122.

Hefte 12.

s.122302-1-122302-7.

DOI: 10.1103/PhysRevLett.122.122302

(2019)

Dynamical friction in interacting relativistic systems.

Journal of Cosmology and Astroparticle Physics (JCAP).

ISSN 1475-7516.

Volum 2019.

Hefte 8.

DOI: 10.1088/1475-7516/2019/08/017

(2019)

Analytic structure of nonhydrodynamic modes in kinetic theory.

European Physical Journal C.

ISSN 1434-6044.

Volum 79.

Hefte 9.

s.1-21.

DOI: 10.1140/epjc/s10052-019-7271-9

(2019)

Highly occupied gauge theories in 2+1 dimensions: A self-similar attractor.

Physical Review D.

ISSN 2470-0010.

Volum 100.

Hefte 9.

s.1-12.

DOI: 10.1103/PhysRevD.100.094022

(2019)

Flow in AA and pA as an interplay of fluid-like and non-fluid like excitations.

European Physical Journal C.

ISSN 1434-6044.

Volum 79.

Hefte 11.

DOI: 10.1140/epjc/s10052-019-7428-6

(2019)

Spectral function for overoccupied gluodynamics from classical lattice simulations.

Acta Physica Polonica B.

ISSN 0587-4254.

Volum 50.

Hefte 6.

s.1105-1116.

DOI: 10.5506/APhysPolB.50.1105

(2019)

Opacity dependence of elliptic flow in kinetic theory.

European Physical Journal C.

ISSN 1434-6044.

Volum 79.

Hefte 9.

DOI: 10.1140/epjc/s10052-019-7262-x

(2019)

Constraining the properties of neutron-star matter with observations.

MEMORIE DELLA SOCIETÀ ASTRONOMICA ITALIANA JOURNAL OF THE ITALIAN ASTRONOMICAL SOCIETY.

ISSN 0037-8720.

Volum 90.

Hefte 1-2.

s.81-86.

(2018)

Plasmon mass scale and quantum fluctuations of classical fields on a real time lattice.

The European Physical Journal Conferences.

ISSN 2101-6275.

Volum 175.

DOI: 10.1051/epjconf/201817511001

(2018)

Gravitational-Wave Constraints on the Neutron-Star-Matter Equation of State.

Physical Review Letters.

ISSN 0031-9007.

Volum 120.

Hefte 17.

DOI: 10.1103/PhysRevLett.120.172703

(2018)

Hybrid fluid models from mutual effective metric couplings.

Journal of High Energy Physics (JHEP).

ISSN 1126-6708.

Volum 2018.

Hefte 8.

DOI: 10.1007/JHEP08(2018)054

(2018)

Nearly isentropic flow at sizeable η/s.

Physics Letters B.

ISSN 0370-2693.

Volum 783.

s.274-279.

DOI: 10.1016/j.physletb.2018.06.064

(2018)

Next-to-Next-to-Next-to-Leading Order Pressure of Cold Quark Matter: Leading Logarithm.

Physical Review Letters.

ISSN 0031-9007.

Volum 121.

Hefte 20.

s.1-6.

DOI: 10.1103/PhysRevLett.121.202701

(2017)

On high-order perturbative calculations at finite density.

Nuclear Physics B.

ISSN 0550-3213.

Volum 915.

s.102-118.

DOI: 10.1016/j.nuclphysb.2016.11.023

(2016)

Neutron star structure from QCD.

European Physical Journal A.

ISSN 1434-6001.

Volum 52.

Hefte 49.

DOI: 10.1140/epja/i2016-16049-6

(2016)

Cool Quark Matter.

Physical Review Letters.

ISSN 0031-9007.

Volum 117.

Hefte 4.

DOI: 10.1103/PhysRevLett.117.042501

(2016)

Time evolution of linearized gauge field fluctuations on a real-time lattice.

European Physical Journal C.

ISSN 1434-6044.

Volum 76:688.

Hefte 12.

s.1-8.

DOI: 10.1140/epjc/s10052-016-4523-9

(2016)

Initial conditions for hydrodynamics from weakly coupled pre-equilibrium evolution.

Journal of High Energy Physics (JHEP).

ISSN 1126-6708.

Hefte 8.

DOI: 10.1007/JHEP08(2016)171

(2016)

Weak and strong coupling equilibration in nonabelian gauge theories.

Journal of High Energy Physics (JHEP).

ISSN 1126-6708.

Volum 2016.

Hefte 4.

DOI: 10.1007/JHEP04(2016)031

(2016)

QCD constraints on the equation of state for compact stars.

Nuclear Physics A.

ISSN 0375-9474.

Volum 956.

s.813-816.

DOI: 10.1016/j.nuclphysa.2016.01.037

(2015)

Isotropization and Hydrodynamization in Weakly Coupled Heavy-Ion Collisions.

Physical Review Letters.

ISSN 0031-9007.

Volum 115.

Hefte 18.

DOI: 10.1103/PhysRevLett.115.182301

Formidling

(2017)

Initial conditions for hydrodynamics from kinetic theory equilibration.

Nuclear Physics A.

ISSN 0375-9474.

Volum 967.

s.289-292.

DOI: 10.1016/j.nuclphysa.2017.04.009

(2016)

Far-from-equilibrium plasmas.

XXVIIIth Rencontres de Blois, Particle Physics & Cosmology; Blois, 2016;

2016-05-29 - 2016-06-03.

(2016)

Phenomenology of Heavy Ions and LQCD.

Lattice 2016, The 34th International Symposium on Lattice Field Theory; Southampton, UK, July 2016;

2016-07-24 - 2016-07-30.

(2016)

Hydrodynamization in weakly-coupled heavy-ion collisions.

12th International Conference on Strong and Electroweak Matter (SEWM 2016) ;

2016-07-11 - 2016-07-15.

(2016)

Heavy-ion physics.

ESHEP2016, The 2016 European School of High-Energy Physics;

2016-06-15 - 2016-06-28.

(2016)

QCD Kinetic Theory And Thermalization.

The 26th Jyväskylä Summer School;

2016-08-08 - 2016-08-12.

(2015)

Constraining neutron star matter with Quantum Chromodynamics.

The Neutron Star Radius and ALL That Jazz;

2015-07-02.