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HK: Fachverband Physik der Hadronen und Kerne
HK 15: Heavy-Ion Collisions and QCD Phases II
HK 15.6: Talk
Tuesday, March 17, 2026, 17:30–17:45, PHIL C 601
Hydrodynamic attractors in periodically driven weakly and strongly coupled systems — •Simon Schneider1, Sören Schlichting2, Aleksas Mazeliauskas3, Louis Onwuka4, Martin Vrdoljak5, and Toshali Mitra6 — 1Fakultät für Physik, Universität Bielefeld, D-33615 Bielefeld, Germany — 2Fakultät für Physik, Universität Bielefeld, D-33615 Bielefeld, Germany — 3Institut für Theoretische Physik, Universät Heidelberg, D-69120 Heidelberg, Germany — 4Fakultät für Physik, Universität Bielefeld, D-33615 Bielefeld, Germany — 5Fakultät für Physik, Universität Bielefeld, D-33615 Bielefeld, Germany — 6Institut für Theoretische Physik, Universät Heidelberg, D-69120 Heidelberg, Germany
We study equilibration and hydrodynamic response in systems undergoing periodic expansion and contraction in one spatial direction. We use strongly coupled holographic, weakly coupled kinetic and hydrodynamic frameworks to study the shear response to periodic drive for different amplitudes and frequencies. Unlike the monotic Bjorken expansion, the system does not approach equilibrium or even Navier-Stokes behavior. For small drive amplitudes and frequencies, the late time cyclic attractor is universal across systems and is described by MIS theory. For large drive amplitudes, the non-linear heating induces the drift in the system properties and the attractor behaviour.
Keywords: Hydrodynamic Attractors; Kinetic Theory