On the energy-momentum and spin tensors in the Riemann-Cartan space

被引:0
|
作者
Lompay, Robert R. [1 ]
机构
[1] Uzhgorod Natl Univ, Dept Phys, UA-88000 Uzhgorod, Ukraine
关键词
Stress-energy-momentum tensors; Spin tensors; Conservation laws; Metric-torsion theories; Riemann-Cartan geometry; Diffeomorphic invariance; Manifest covariance; ANGULAR-MOMENTUM; CURRENTS;
D O I
10.1007/s10714-014-1692-4
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
General classical theories of material fields in an arbitrary Riemann-Cartan space are considered. For these theories, with the help of equations of balance, new non-trivially generalized, manifestly generally covariant expressions for canonical energy-momentum and spin tensors are constructed in the cases when a Lagrangian contains (a) an arbitrary set of tensorial material fields and their covariant derivatives up to the second order, as well as (b) the curvature tensor and (c) the torsion tensor with its covariant derivatives up to the second order. A non-trivialmanifestly generally covariant generalization of the Belinfante symmetrization procedure, suitable for an arbitrary Riemann-Cartan space, is carried out. A covariant symmetrized energy-momentum tensor is constructed in a general form.
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页码:1 / 23
页数:23
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