Convergence of hydrodynamic modes: insights from kinetic theory and holography
We study the mechanisms setting the radius of convergence of hydrodynamic dispersion relations in kinetic theory in the relaxation time approximation. This introduces a qualitatively new feature with respect to holography: a nonhydrodynamic sector represented by a branch cut in the retarded Green...
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| Format: | Article |
| Language: | English |
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SciPost
2021-06-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.10.6.123 |