نتایج جستجو برای: relativistic shear tensor

تعداد نتایج: 145812  

Journal: :Epj Web of Conferences 2023

The polarization of the $\Lambda$ hyperon has become an important probe Quark-Gluon Plasma produced in relativistic heavy-ion collisions. Recently, it been found that receives a substantial contribution from local equilibrium term proportional to symmetric derivative four-temperature vector, thermal shear tensor. We show that, at very high energies, this can restore agreement between experiment...

Journal: :Physical Review C 2022

We present a systematic study of $\mathrm{\ensuremath{\Lambda}}$ hyperon's polarization observables using event-by-event ($3+1$) dimensional relativistic hydrodynamics. The effects initial hot spot size and quark gluon plasma's specific shear viscosity on the are quantified. examine two formulations thermal tensor same hydrodynamic background. With simulations, we make predictions for Fourier c...

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2011
H Orihara Y Nishimoto K Aida Y H Na T Nagaya S Ujiie

We have investigated the structural change of an immiscible polymer blend in shear flow when subjected to a step electric field. During the process three-dimensional images were successfully constructed with a confocal scanning laser microscope and at the same time the transient shear stress was also measured. The interface tensor was calculated from the images. Several factors are incorporated...

2009
Simon F. Ross Omid Saremi

We discuss the calculation of the field theory stress tensor from the dual geometry for two recent proposals for gravity duals of non-relativistic conformal field theories. The first of these has a Schrödinger symmetry including Galilean boosts, while the second has just an anisotropic scale invariance (the Lifshitz case). For the Lifshitz case, we construct an appropriate action principle. We ...

2008
Dennis Lehmkuhl

I describe how relativistic field theory generalises the defining property of material systems to possess mass to the requirement of them having a mass-energy-momentum density tensor Tμν (energy tensor for short) associated with them. I argue that according to general relativity Tμν is not an intrinsic property of matter, looking at how the energy tensor for a relativistic material system can b...

2007
L. Gualtieri J. A. Pons J. A. Miralles V. Ferrari

We derive the relativistic equations for stellar perturbations, including in a consistent way shear viscosity in the stress-energy tensor, and we numerically integrate our equations in the case of large viscosity. We consider the slow rotation approximation, and we neglect the coupling between polar and axial perturbations. In our approach, the frequency and damping time of the emitted gravitat...

1997
Charles F. Gammie Robert Popham

We write down and solve equations describing steady state, optically thin, advection-dominated accretion onto a Kerr black hole. The mean flow, described by the relativistic fluid equations, is axisymmetric and vertically averaged. The effect of turbulence in the flow is represented by a viscous shear stress. Our treatment differs in several important ways from earlier work: we use a causal pre...

2015

Some processes of heat and electrical charge transfer under relativistic conditions have been studied allowing for primordial substance anisotropy. In particular, electrical charge convection and conductivity were examined in the framework of 3-D and 4-D formalisms. Dependences were obtained in which the left-hand-sides and right-hand-sides transformed identically as v , с → where v was the vel...

1996
J. Zimányi

The relativistic mean field model, the Zimányi Moszkowski (ZM) Lagrangian describes nuclear matter and stable finite nuclei even in the non-relativistic limit. It fails, however, to predict the correct non-relativistic spin-orbit (SO) coupling. In this paper we improve on this matter by an additional tensor coupling analogous to the anomalous gyromagnetic ratio. It can be adjusted to describe t...

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