On scalar and vector fields coupled to the energy-momentum tensor
Sign Up to like & getrecommendations! Published in 2018 at "Journal of High Energy Physics"
DOI: 10.1007/jhep05(2018)100
Abstract: A bstractWe consider theories for scalar and vector fields coupled to the energy-momentum tensor. Since these fields also carry a non-trivial energy-momentum tensor, the coupling prescription generates self-interactions. In analogy with gravity theories, we build… read more here.
Keywords: energy momentum; momentum tensor; vector fields; energy ... See more keywords
The energy-momentum multiplet of supersymmetric defect field theories
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep08(2017)010
Abstract: A bstractDefects in field theories break translation invariance, resulting in the non-conservation of the energy-momentum tensor in the directions normal to the defect. This violation is known as the displacement operator. We study 4d N=1$$… read more here.
Keywords: multiplet; field theories; energy momentum; energy ... See more keywords
Contribution of Pressure to the Energy–Momentum Density in a Moving Perfect Fluid: A Physical Perspective
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DOI: 10.1007/s10701-021-00403-6
Abstract: In the energy–momentum density expressions for a relativistic perfect fluid with a bulk motion, one comes across a couple of pressure-dependent terms, which though well known, are to an extent, lacking in their conceptual basis… read more here.
Keywords: energy; energy momentum; density; momentum density ... See more keywords
Conservation of the Energy-Momentum
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-017-3489-1
Abstract: In Relativity the sum of 4−vectors in different points does not generally represent a 4−vector. By using this result, it is shown by simple methods that the total energy-momentum of a system of point particles… read more here.
Keywords: system; energy; energy momentum; physics ... See more keywords
Energy–momentum distribution in general relativity for a phantom black hole metric
Sign Up to like & getrecommendations! Published in 2019 at "Indian Journal of Physics"
DOI: 10.1007/s12648-019-01651-z
Abstract: Using the Møller and Landau–Lifshitz energy–momentum definitions in general relativity, we evaluate the energy–momentum distribution of the phantom black hole space-time. The phantom black hole model was applied to the supermassive black hole at the… read more here.
Keywords: hole; black hole; phantom black; energy momentum ... See more keywords
An energy–momentum time integration scheme based on a convex multi-variable framework for non-linear electro-elastodynamics
Sign Up to like & getrecommendations! Published in 2018 at "Computer Methods in Applied Mechanics and Engineering"
DOI: 10.1016/j.cma.2018.04.021
Abstract: Abstract This paper introduces a new one-step second order accurate energy–momentum (EM) preserving time integrator for reversible electro-elastodynamics. The new scheme is shown to be extremely useful for the long-term simulation of electroactive polymers (EAPs)… read more here.
Keywords: energy; energy momentum; electro elastodynamics; time ... See more keywords
A time-dependent energy-momentum method
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Geometry and Physics"
DOI: 10.1016/j.geomphys.2021.104364
Abstract: We devise a generalisation of the energy momentum-method for studying the stability of non-autonomous Hamiltonian systems with a Lie group of Hamiltonian symmetries. A generalisation of the relative equilibrium point notion to a non-autonomous realm… read more here.
Keywords: energy momentum; relative equilibrium; momentum method; non autonomous ... See more keywords
Mass, Energy, and Momentum Flux Analysis of a Bendway Weir
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Hydraulic Engineering"
DOI: 10.1061/(asce)hy.1943-7900.0001349
Abstract: AbstractBendway weirs are hydraulic control structures found in watercourses that range in scale from small streams to large rivers. They are designed to be submerged, broad-crested weirs, typicall... read more here.
Keywords: energy momentum; momentum flux; mass energy; analysis bendway ... See more keywords
Transferring energy in general relativity
Sign Up to like & getrecommendations! Published in 2018 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/aad0ad
Abstract: A problem in general relativity is, how the gravitational field can transfer energy and momentum between different distant places. The issue is that matter stress tensor is locally conserved, with no explicit interaction with the… read more here.
Keywords: energy; energy momentum; tensor; general relativity ... See more keywords
Energy-momentum tensor of a ferromagnet
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.224401
Abstract: The energy-momentum tensor of a ferromagnet derived according to the standard prescription of Noether's theorem has a major flaw: the term originating from the spin Berry phase is gauge-dependent. As a consequence, some physical quantities… read more here.
Keywords: energy; energy momentum; momentum tensor; tensor ... See more keywords
Energy-momentum and angular-momentum of a gyratonic pp -waves spacetime
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.100.024023
Abstract: Gyratonic plane fronted gravitational waves are exact solutions of Einstein's field equations, which correspond to gravitational waves that carry momentum and angular-momentum. Using the definitions of the Hamiltonian formulation of the Teleparallel Equivalent of General… read more here.
Keywords: gravitational waves; momentum; angular momentum; energy momentum ... See more keywords