Publications (24)
Construction of quantum states by special superpositions of coherent states
P. Adam, E. Molnar, G. Mogyorosi +3
We consider the optimal approximation of certain quantum states of a harmonic oscillator with the superposition of a finite number of coherent states in phase space placed either o…
Impact of Nucleon Mass Shift on the Freeze Out Process
S. Zschocke, L. P. Csernai, E. Molnar +2
The freeze out of a massive nucleon gas through a finite layer with time-like normal is studied. The impact of in-medium nucleon mass shift on the freeze out process is investigate…
Modified Boltzmann Transport Equation
V. K. Magas, L. P. Csernai, E. Molnar +2
Recently several works have appeared in the literature in which authors try to describe Freeze Out (FO) in energetic heavy ion collisions based on the Boltzmann Transport Equation…
Derivation of transient relativistic fluid dynamics from the Boltzmann equation
G. S. Denicol, H. Niemi, E. Molnar +1
In this work we present a general derivation of relativistic fluid dynamics from the Boltzmann equation using the method of moments. The main difference between our approach and th…
Relativistic shock waves in viscous gluon matter
I. Bouras, E. Molnar, H. Niemi +5
We solve the relativistic Riemann problem in viscous gluon matter employing a microscopic parton cascade. We demonstrate the transition from ideal to viscous shock waves by varying…
Multi-Module Modeling of Heavy Ion Reactions and the 3rd Flow Component
L. P. Csernai, A. Anderlik, Cs. Anderlik +5
Fluid dynamical calculations with QGP showed a softening of the directed flow while with hadronic matter this effect is absent. On the other hand, we indicated that a third flow co…
Investigation of shock waves in the relativistic Riemann problem: A comparison of viscous fluid dynamics to kinetic theory
I. Bouras, E. Molnar, H. Niemi +5
We solve the relativistic Riemann problem in viscous matter using the relativistic Boltzmann equation and the relativistic causal dissipative fluid-dynamical approach of Israel and…
Bjorken expansion with gradual freeze out
V. K. Magas, L. P. Csernai, E. Molnar
The freeze out of the expanding systems, created in relativistic heavy ion collisions, will be discussed. We combine kinetic freeze out equations with Bjorken type system expansion…
Entropy production in high-energy heavy-ion collisions and the correlation of shear viscosity and thermalization time
A. Dumitru, E. Molnar, Y. Nara
We study entropy production in the early stage of high-energy heavy-ion collisions due to shear viscosity. We employ the second-order theory of Israel-Stewart with two different st…
Freeze out in narrow and wide layers
V. K. Magas, L. P. Csernai, E. Molnar
The freeze out of particles from a layer of finite thickness is discussed in a phenomenological kinetic model. The proposed model, based on the Modified Boltzman Transport Equation…
Freeze out of the expanding system
V. K. Magas, L. P. Csernai, E. Molnar
The freeze out (FO) of the expanding systems, created in relativistic heavy ion collisions, is discussed. We start with kinetic FO model, which realizes complete physical FO in a l…
Entropy production at freeze-out from dissipative fluids
E. Molnar
Entropy production due to shear viscosity during the continuous freeze-out of a longitudinally expanding dissipative fluid is addressed. Assuming the validity of the fluid dynamica…
Solving the heat-flow problem with transient relativistic fluid dynamics
G. S. Denicol, H. Niemi, I. Bouras +4
Israel-Stewart theory is a causal, stable formulation of relativistic dissipative fluid dynamics. This theory has been shown to give a decent description of the dynamical behavior…
Covariant description of kinetic freeze out through a finite space-like layer
E. Molnar, L. P. Csernai, V. K. Magas +2
The problem of Freeze Out (FO) in relativistic heavy ion reactions is addressed. We develop and analyze an idealized one-dimensional model of FO in a finite layer, based on the cov…
Second order dissipative fluid dynamics from kinetic theory
B. Betz, G. S. Denicol, T. Koide +3
We derive the equations of second order dissipative fluid dynamics from the relativistic Boltzmann equation following the method of W. Israel and J. M. Stewart. We present a frame…
Modified Boltzmann Transport Equation and Freeze Out
L. P. Csernai, V. K. Magas, E. Molnar +2
We study Freeze Out process in high energy heavy ion reaction. The description of the process is based on the Boltzmann Transport Equation (BTE). We point out the basic limitations…
Covariant description of kinetic freeze out through a finite time-like layer
E. Molnar, L. P. Csernai, V. K. Magas +3
The Freeze Out (FO) problem is addressed for a covariant FO probability and a finite FO layer with a time-like normal vector continuing the line of studies introduced in Ref. [1].…
Covariant kinetic freeze out description through a finite space-time layer
E. Molnar, L. P. Csernai, V. K. Magas
We develop and analyze a covariant FO probability valid for a finite space-time layer.
Derivation of anisotropic dissipative fluid dynamics from the Boltzmann equation
E. Molnar, H. Niemi, D. H. Rischke
Fluid-dynamical equations of motion can be derived from the Boltzmann equation in terms of an expansion around a single-particle distribution function which is in local thermodynam…
Fluid dynamical equations and transport coefficients of relativistic gases with non-extensive statistics
T. S. Biro, E. Molnar
We derive equations for fluid dynamics from a non-extensive Boltzmann transport equation consistent with Tsallis' non-extensive entropy formula. We evaluate transport coefficients…
Freeze Out and the Boltzmann Transport Equation
L. P. Csernai, V. K. Magas, E. Molnar +2
Recently several works have appeared in the literature that addressed the problem of Freeze Out in energetic heavy ion reaction and aimed for a description based on the Boltzmann T…
The 3rd Flow Component as a QGP Signal
L. P. Csernai, A. Anderlik, Cs. Anderlik +5
Earlier fluid dynamical calculations with QGP show a softening of the directed flow while with hadronic matter this effect is absent. On the other hand, we indicated that a third f…
Development of relativistic shock waves in viscous gluon matter
I. Bouras, E. Molnar, H. Niemi +5
To investigate the formation and the propagation of relativistic shock waves in viscous gluon matter we solve the relativistic Riemann problem using a microscopic parton cascade. W…
Phase Transitions in High Energy Heavy-Ion Collisions
L. P. Csernai, A. Anderlik, Cs. Anderlik +8
Modelling Quark-Gluon Plasma formation and decay in high energy heavy ion reactions is presented in a framework of a multi-module setup. The collective features, governing the equl…