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| VOLUME 90 | ISSUE 4 |
PAGE 245
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| Hydrodynamical description of a hadron-quark first-order phase transition |
V. V. Skokov+*, D. N. Voskresensky
+GSI, D-64291 Darmstadt, Germany
*Joint Institute for Nuclear Research, 141980 Dubna, Moscow Region, Russia
 Moscow Engineering Physics Institute, 115409 Moscow, Russia
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PACS: 25.75.Nq, 64.10.+h, 64.60.Bd
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Abstract
Solutions of hydrodynamical equations are presented for
the equation of state of the Van der Waals type allowing for a
first-order phase transition. As an example we consider the
hadron-quark phase transition in heavy-ion collisions. It is shown
that fluctuations dissolve and grow as if the fluid is effectively
very viscous. In the vicinity of the critical point even in
spinodal region seeds are growing slowly due to viscosity,
surface tension and critical slowing down. These non-equilibrium
effects prevent enhancement of fluctuations in the near-critical
region, which in thermodynamical approach is frequently considered
as a signal of the critical endpoint in heavy-ion collisions.
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