Geometrization of spin and the Weyssenhoff fluid conjecture

1986 ◽  
Vol 18 (5) ◽  
pp. 549-553 ◽  
Author(s):  
Larry L. Smalley ◽  
John R. Ray
Keyword(s):  
Weyssenhoff Fluid

scholarly journals Weyssenhoff fluid dynamics in general relativity using a 1 + 3 covariant approach

2007 ◽  
Vol 24 (24) ◽  
pp. 6329-6348 ◽  
Author(s):  
S D Brechet ◽  
M P Hobson ◽  
A N Lasenby
Keyword(s):  
Fluid Dynamics ◽  
General Relativity ◽  
Covariant Approach ◽  
Weyssenhoff Fluid

scholarly journals Einstein–Cartan gravitational collapse of a homogeneous Weyssenhoff fluid

2014 ◽  
Vol 74 (11) ◽  
Author(s):  
Amir Hadi Ziaie ◽  
Paulo Vargas Moniz ◽  
Arash Ranjbar ◽  
Hamid Reza Sepangi
Keyword(s):  
Gravitational Collapse ◽  
Weyssenhoff Fluid

scholarly journals Classical big-bounce cosmology: dynamical analysis of a homogeneous and irrotational Weyssenhoff fluid

2008 ◽  
Vol 25 (24) ◽  
pp. 245016 ◽  
Author(s):  
S D Brechet ◽  
M P Hobson ◽  
A N Lasenby
Keyword(s):  
Dynamical Analysis ◽  
Weyssenhoff Fluid ◽  
Big Bounce

scholarly journals Spin axioms in relativistic continuum physics

2002 ◽  
pp. 169-184
Author(s):  
H.J. Herrmann ◽  
G. Ruckner ◽  
W. Muschik ◽  
H.H.v. Borzeszkowski
Keyword(s):  
Material Properties ◽  
The Other ◽  
Spin Tensor ◽  
Electron Fluid ◽  
Relativistic Spin ◽  
Dirac Electron ◽  
Spin Fields ◽  
Basic Spin ◽  
Constitutive Properties ◽  
Weyssenhoff Fluid

The 24 components of the relativistic spin tensor consist of 3 + 3 basic spin fields and 9 + 9 constitutive fields. Empirically only 3 basic spin fields and 9 constitutive fields are known. This empirem can be expressed by two spin axioms, one of them identifying 3 spin fields, and the other one 9 constitutive fields to each other. This identification by the spin axioms is materialindependent and does not mix basic spin fields with constitutive properties. The approaches to the Weyssenhoff fluid and the Dirac-electron fluid found in literature are discussed with regard to these spin axioms. The conjecture is formulated, that another reduction from 6 to 3 basic spin fields which does not obey the spin axioms introduces special material properties by not allowed mixing of constitutive and basic fields. .

Homogeneous cosmos of Weyssenhoff fluid in Einstein-Cartan space

1986 ◽  
Vol 34 (12) ◽  
pp. 3661-3665 ◽  
Author(s):  
J. Duarte de Oliveira ◽  
A. F. F. Teixeira ◽  
J. Tiomno
Keyword(s):  
Weyssenhoff Fluid

Weyssenhoff Fluid Sphere Models in Einstein-Cartan Theory

2021 ◽  
Author(s):  
L.N. KatKar ◽  
D.R. Phadatare
Keyword(s):  
Equation Of State ◽  
Fluid Sphere ◽  
Geodesic Flows ◽  
Field Equations ◽  
Weyssenhoff Fluid ◽  
Cartan Theory ◽  
Density Equation ◽  
Kinematical Parameters

We obtain three models for Geodesic flows and three models for Non-Geodesic flows of Weyssenhoff fluid considering it as the source of gravitation and spin in the Einstein-Cartan field equations. Influence of spin on the pressure, density, equation of state and the kinematical parameters is observed in both geodesic and non-geodesic models.

The Weyssenhoff fluid in Einstein-Cartan theory

1987 ◽  
Vol 4 (6) ◽  
pp. 1633-1657 ◽  
Author(s):  
Y N Obukhov ◽  
V A Korotky
Keyword(s):  
Weyssenhoff Fluid ◽  
Cartan Theory
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