Shear transport far from equilibrium via holography
- In heavy-ion collisions, the quark-gluon plasma is produced far from equilibrium. This regime is currently inaccessible by direct quantum chromodynamics (QCD) computations. In a holographic context, we propose a general method to characterize transport properties based on well-defined two-point functions. We calculate shear transport and entropy far from equilibrium, defining a time-dependent ratio of shear viscosity to entropy density, . Large deviations from its near-equilibrium value , up to a factor of 2.5, are found for realistic situations at the Large Hadron Collider. We predict the far-from-equilibrium time-dependence of to substantially affect the evolution of the QCD plasma and to impact the extraction of QCD properties from flow coefficients in heavy-ion collision data.
Download full text files
Additional Services
| Author: | Michael Florian WondrakGND, Matthias KaminskiORCiDGND, Marcus BleicherORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-565186 |
| DOI: | https://doi.org/10.1016/j.physletb.2020.135973 |
| ISSN: | 1873-2445 |
| ISSN: | 0370-2693 |
| Parent Title (German): | Physics Letters B |
| Publisher: | Elsevier |
| Place of publication: | Amsterdam [u.a.] |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2020/11/25 |
| Date of first Publication: | 2020/11/25 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Release Date: | 2020/12/03 |
| Tag: | Far from equilibrium; Heavy-ion collisions; Holography; Shear viscosity; η/s |
| Volume: | 811 |
| Issue: | 135973 |
| Page Number: | 6 |
| HeBIS-PPN: | 47790890X |
| Institutes: | Physik / Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Creative Commons - Namensnennung 4.0 |
