| Issue |
EPJ Web of Conferences
Volume 13, 2011
HCBM 2010 – International Workshop on Hot and Cold Baryonic Matter
|
|
|---|---|---|
| Article Number | 06004 | |
| Number of page(s) | 5 | |
| Section | Transport Models | |
| DOI | https://doi.org/10.1051/epjconf/20111306004 | |
| Published online | 19 April 2011 | |
https://doi.org/10.1051/epjconf/20111306004
Transport coefficients in non-quasiparticle systems
Institute of Physics, BME Technical University, H-l 111 Budapest, Hungary
a e-mail: jakovac@phy.bme.hu
Transport coefficients, in particular the shear viscosity to entropy density ratio are studied in systems where the small-width quasiparticle assumption is not valid. It is found that η/s has no universal lower bound, the minimal value depends on the system and the temperature, and can be even zero. We construct models where the 1/4π conjectured bound is violated.
© Owned by the authors, published by EDP Sciences, 2011
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