TY - INPR A1 - Spieles, Christian A1 - Dumitru, Adrian Bogdan A1 - Bass, Steffen A. A1 - Bleicher, Marcus A1 - Brachmann, Jörg A1 - Brandstetter, Mathias A1 - Ernst, Christoph A1 - Gerland, Lars A1 - Konopka, Jens A1 - Soff, Sven A1 - Weber, Henning A1 - Winckelmann, Luke Andreas A1 - Maruhn, Joachim A1 - Stöcker, Horst A1 - Greiner, Walter A2 - Carlson, Carl E. A2 - Domingo, John J. T1 - Extracting the equation of state from a microscopic non-equilibrium model N2 - We study the thermodynamic properties of infinite nuclear matter with the Ultrarelativistic Quantum Molecular Dynamics (URQMD), a semiclassical transport model, running in a box with periodic boundary conditions. It appears that the energy density rises faster than T4 at high temperatures of T approx. 200 - 300 MeV. This indicates an increase in the number of degrees of freedom. Moreover, We have calculated direct photon production in Pb+Pb collisions at 160 GeV/u within this model. The direct photon slope from the microscopic calculation equals that from a hydrodynamical calculation without a phase transition in the equation of state of the photon source. Y1 - 1996 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/4799 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-7037 SN - 978-9810230036 SN - 9810230036 SN - 978-981-4546-64-5 N1 - Erschienen in: Carl E. Carlson ; John J. Domingo (Hrsg.): Particles and Nuclei (PANIC 96) : proceedings of the 14th Particles and Nuclei International Conference ; 14th Particles and Nuclei International Conference, Sigapore : World Scientific, 1997, S. 409-411, ISBN: 978-9810230036, ISBN: 9810230036, ISBN: 978-981-4546-64-5, doi:10.1142/9789814530231 SP - 1 EP - 3 ER -