Far-from-equilibrium fluid dynamics

by Prof. Ulrich Heinz (The Ohio State University)

Monday 18 Sep 2023, 10:30 → 11:30 Asia/Shanghai

B105 (CHEP)

The earliest evolution stage of the dense matter created in heavy-ion collisions is characterized by large space-time gradients, in particular in small collision systems. This challenges the applicability of standard dissipative relativistic fluid dynamics in these environments. I discuss viscous anisotropic hydrodynamics (VAH) and maximum-entropy hydrodynamics (ME hydro) as two approaches to extend the applicability of viscous hydrodynamics into the far-off-equilibrium domain and provide tests of their precision in situations where the microscopic dynamics is known exactly. If time permits I also show results from a recent Bayesian model calibration of a VAH-based hybrid model using measurements from Pb-Pb collisions at the LHC.

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Ulrich Heinz is an Academy Professor at The Ohio State University, USA. He received his Ph.D. in 1980 from the Goethe University in Frankfurt, Germany, and has held positions at Vanderbilt University, Brookhaven National Laboratory, CERN, the University of Regensburg, and The Ohio State University. He is an elected Fellow of the American Physics Society (APS, 2001) and of the American Association for the Advancement of Science (AAAS, 2005). He has served as Divisional Associate Editor for Physical Review Letters, Associate Editor for Nuclear Physics A, and in various roles for other prestigious international journals. Prof. Ulrich Heinz’s research focuses on relativistic heavy-ion collisions and the quark-gluon plasma. Over the past 30 years, he has played a leading role in the development of hydrodynamics and transport theory, revealing the near-perfect liquid nature of the quark gluon plasma.

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