April 30, 2015
10:00AM
-
11:00AM
4138 Physics Research Building
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2015-04-30 09:00:00
2015-04-30 10:00:00
Nuclear Physics Seminar - Michael Heller (Perimeter Institute/National Centre for Nuclear Research) Relativistic Hydrodynamics and Beyond
I will discuss three models containing relativistic hydrodynamics: N=4 SYM at strong coupling, Mueller-Israel-Stewart theory of second order hydrodynamics and its new generalization. I will demonstrate, using Bjorken's boost-invariant flow, that in all three models the hydrodynamic gradient expansion is divergent due to the presence of exponentially decaying modes not captured by the hydrodynamics gradient expansion. I will then discuss how to properly think about the "resummed hydrodynamics" and show that in expanding plasma systems described by Mueller-Israel-Stewart theory such resummation does not produce significant deviations from the gradient expansion truncated at the first (viscous) order.
4138 Physics Research Building
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Date Range
2015-04-30 10:00:00
2015-04-30 11:00:00
Nuclear Physics Seminar - Michael Heller (Perimeter Institute/National Centre for Nuclear Research) Relativistic Hydrodynamics and Beyond
I will discuss three models containing relativistic hydrodynamics: N=4 SYM at strong coupling, Mueller-Israel-Stewart theory of second order hydrodynamics and its new generalization. I will demonstrate, using Bjorken's boost-invariant flow, that in all three models the hydrodynamic gradient expansion is divergent due to the presence of exponentially decaying modes not captured by the hydrodynamics gradient expansion. I will then discuss how to properly think about the "resummed hydrodynamics" and show that in expanding plasma systems described by Mueller-Israel-Stewart theory such resummation does not produce significant deviations from the gradient expansion truncated at the first (viscous) order.
4138 Physics Research Building
America/New_York
public
I will discuss three models containing relativistic hydrodynamics: N=4 SYM at strong coupling, Mueller-Israel-Stewart theory of second order hydrodynamics and its new generalization. I will demonstrate, using Bjorken's boost-invariant flow, that in all three models the hydrodynamic gradient expansion is divergent due to the presence of exponentially decaying modes not captured by the hydrodynamics gradient expansion. I will then discuss how to properly think about the "resummed hydrodynamics" and show that in expanding plasma systems described by Mueller-Israel-Stewart theory such resummation does not produce significant deviations from the gradient expansion truncated at the first (viscous) order.
