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On the Conformally Covariant Energy-Momentum Tensor
Physica Scripta, 1986A method is proposed with which one can easily obtain the conformally covariant energy-momentum tensors for various fields from the canonical ones.
Zhu, Dong Pei, Gao, Xiao Chun
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Sectional curvature and the energy–momentum tensor
Classical and Quantum Gravity, 2005\textit{J.~Ehlers and W.~Kundt} [Gravitation: An Introduction to Current Research, ed. L.~Witten, New York: Wiley, 1962, p. 49] showed that if \(M\) is a spacetime and \(p\in M\), the statement that the Einstein space condition holds at \(p\) is equivalent to the statement that the sectional curvatures of each of any orthogonal pair of non-null 2 ...
Hall, G. S., MacNay, Lucy
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2013
The energy–momentum tensor of a continuous physical system is introduced from considerations about a particle system. It is then interpreted in terms of quantities measurable by a given observer: energy density, linear-momentum density, energy-flux 1-form and stress tensor.
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The energy–momentum tensor of a continuous physical system is introduced from considerations about a particle system. It is then interpreted in terms of quantities measurable by a given observer: energy density, linear-momentum density, energy-flux 1-form and stress tensor.
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The energy-momentum tensor for lattice gauge theories
Annals of Physics, 1990zbMATH Open Web Interface contents unavailable due to conflicting licenses.
CARACCIOLO S +3 more
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2019
In this chapter we study the energy-momentum tensor. After defining it from the Lagrangian formalism, we consider conservation equations in general, and apply it to the energy–momentum tensor. We find an ambiguity in the definition of the energy–momentum tensor, we fix it by considering the symmetric tensor, and we find the interpretation of the tensor'
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In this chapter we study the energy-momentum tensor. After defining it from the Lagrangian formalism, we consider conservation equations in general, and apply it to the energy–momentum tensor. We find an ambiguity in the definition of the energy–momentum tensor, we fix it by considering the symmetric tensor, and we find the interpretation of the tensor'
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The electroelastic energy–momentum tensor
Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences, 1991Abstract Eshelby’s energy–momentum tensor useful for studying material forces acting on various kinds of inhomogeneities is constructed in the exact nonlinear theory of deformable dielectrics. This is achieved by examining the possible changes of reference configurations relative to fixed, locally defined, ‘reference crystals'.
G. A. Maugin, M. Epstein
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1992
Abstract Our programmer for this chapter is to look at the three most important energy—momentum tensors in general relativity, namely, the energy—momentum tensors for incoherent matter or dust, a perfect fluid, and the electromagnetic field.
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Abstract Our programmer for this chapter is to look at the three most important energy—momentum tensors in general relativity, namely, the energy—momentum tensors for incoherent matter or dust, a perfect fluid, and the electromagnetic field.
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Abstract The right-hand side of Einstein’s equation is supplied by the energy-momentum tensor, discussed in Chapter 12, which encodes the energy-momentum of matter fields. In flat spacetime the local conservation of energy-momentum can be expressed via the important constraint ▽⋅T=0. The same expression holds in curved spacetime.
Tom Lancaster, Stephen J. Blundell
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Tom Lancaster, Stephen J. Blundell
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Energy-Momentum Tensor for Plane Waves
Physical Review, 1961A general form is established for the energy momentum tensor for plane waves propagating in a homogeneous medium, the field equations of which are derivable from a quadratic Lagrangian function. Energy density and momentum density are proportional to frequency and the wave vector, the coefficient of proportionality being "action density." Energy flow ...
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The energy-momentum tensor on the lattice
Nuclear Physics B - Proceedings Supplements, 1989Abstract We show how to construct the energy momentum tensor in a field theory regularized on the lattice. The derived energy momentum tensor is conserved and gives rise to the correct anomaly in the limit of zero lattice spacing. The described method can be applied also to gauge theories at the non perturbative level.
Caracciolo, Sergio +3 more
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