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We would like to formulate relativistic dissipative hydrodynamics for multi-component systems with multiple conserved currents. This is important for analyses of the hot matter created in relativistic heavy ion collisions because particle…

核理论 · 物理学 2011-03-23 Akihiko Monnai , Tetsufumi Hirano

Magnetic helicity is a conserved quantity of ideal magnetohydrodynamics (MHD) that is related to the topology of the magnetic field, and is widely studied in both laboratory and astrophysical plasmas. When the magnetic field has a…

等离子体物理 · 物理学 2023-07-28 David MacTaggart , Alberto Valli

We consider changes of the topological charge of vortices in quantum mechanics by investigating analytical examples where the creation or annihilation of vortices occurs. In classical hydrodynamics of non-viscous fluids the Helmholtz-Kelvin…

量子物理 · 物理学 2009-11-07 Bogdan Damski , Krzysztof Sacha

We review the theoretical framework for the calculation of particle polarization in relativistic heavy ion collisions within the hydrodynamical model. The covariant decomposition of the mean spin vector is presented and open theoretical…

核理论 · 物理学 2018-03-14 F. Becattini

With the help of a semi-classical kinetic theory, a new collision kernel is proposed, which simultaneously conserves the energy-momentum tensor and the spin tensor of a relativistic fluid of spin-1/2 particles irrespective of the frame and…

高能物理 - 唯象学 · 物理学 2025-03-12 Samapan Bhadury

A transport model is developed to describe hadron emission from a strongly coupled quark-gluon plasma formed in relativistic heavy ion collisions. The quark-gluon plasma is controlled by ideal hydrodynamics, and the hadron motion is…

核理论 · 物理学 2008-11-26 Hong Miao , Chongshou Gao , Pengfei Zhuang

We consider a self-gravitating system consisting of perfect fluid with spherical symmetry. Using the general expression of entropy density, we extremize the total entropy $S$ under the constraint that the total number of particles is fixed.…

广义相对论与量子宇宙学 · 物理学 2015-05-30 Sijie Gao

This paper considers magnetohydrodynamics (MHD) and some of its applications from the perspective of differential geometry, considering the dynamics of an ideal fluid flow and magnetic field on a general three-dimensional manifold, equipped…

流体动力学 · 物理学 2023-07-26 Andrew D. Gilbert , Jacques Vanneste

Hydrodynamic model simulations of Au-Au collisions at RHIC have indicated recently, that with improved simulations in the coming years, it may be feasible to quantify the viscosity of the matter produced in heavy ion collisions. To this…

核理论 · 物理学 2008-11-26 Rudolf Baier , Paul Romatschke , Urs Achim Wiedemann

A fully geometrical treatment of general relativistic magnetohydrodynamics (GRMHD) is developed under the hypotheses of perfect conductivity, stationarity and axisymmetry. The spacetime is not assumed to be circular, which allows for…

广义相对论与量子宇宙学 · 物理学 2011-05-12 Eric Gourgoulhon , Charalampos Markakis , Koji Uryu , Yoshiharu Eriguchi

A new implementation for magnetohydrodynamics (MHD) simulations in full general relativity (involving dynamical spacetimes) is presented. In our implementation, Einstein's evolution equations are evolved by a BSSN formalism, MHD equations…

天体物理学 · 物理学 2009-11-13 Masaru Shibata , Yu-ichiou Sekiguchi

The hydrodynamic description of transversally thermalized matter, possibly formed at the early stages of ultra-relativistic heavy-ion collisions, is developed. The formalism is based on the thermodynamically consistent approach with all…

核理论 · 物理学 2009-04-17 Mikolaj Chojnacki , Wojciech Florkowski

The quantum hydrodynamic model for charged particle systems is extended to the cases of non zero magnetic fields. In this way, quantum corrections to magnetohydrodynamics are obtained starting from the quantum hydrodynamical model with…

等离子体物理 · 物理学 2007-05-23 Fernando Haas

We derived one-fluid equations based on a relativistic two-fluid approximation of e$^\pm$ pair plasma and electron-ion plasma to reveal the specific relativistic nature of their behavior. Assuming simple condition on the relativistic…

高能天体物理现象 · 物理学 2009-08-11 Shinji Koide

A new effective theory framework for fluctuating hydrodynamics in the relativistic regime is derived using standard thermodynamical principles and general properties of non-equilibrium stochastic dynamics. For the first time, we establish…

核理论 · 物理学 2025-01-09 Nicki Mullins , Mauricio Hippert , Jorge Noronha

We derive the special and general relativistic hydrodynamic equations of motion for ideal fluids from a variational principle. Our approach allows to find approximate solutions, whenever physically motivated trial functions can be used.…

高能物理 - 唯象学 · 物理学 2007-05-23 H. -Th. Elze , T. Kodama , Y. Hama , M. Makler , J. Rafelski

The exact solutions of the complete Dirac equation for fermions moving in ideal Aharonov-Bohm rings are used for deriving the exact expressions of the relativistic partial currents. It is show that as in the non-relativistic case these…

量子物理 · 物理学 2016-01-20 Ion I. Cotaescu , Doru-Marcel Baltateanu , Ion Cotaescu

A theory of thermohydrodynamics in two-dimensional electron systems in quantizing magnetic fields is developed including a nonlinear transport regime. Spatio-temporal variations of the electron temperature and the chemical potential in the…

介观与纳米尺度物理 · 物理学 2009-11-10 Hiroshi Akera , Hidekatsu Suzuura

We study the thermal and electric transport of a fluid of interacting Dirac fermions as they arise in single-layer graphene. We include Coulomb interactions, a dilute density of charged impurities and the presence of a magnetic field to…

介观与纳米尺度物理 · 物理学 2009-05-31 Markus Mueller , Lars Fritz , Subir Sachdev , Joerg Schmalian

Resistive steady states in toroidal magnetohydrodynamics (MHD), where Ohm's law must be taken into account, differ considerably from ideal ones. Only for special (and probably unphysical) resistivity profiles can the Lorentz force, in the…

等离子体物理 · 物理学 2009-10-30 David Montgomery , Jason W. Bates , Shuojun Li