Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
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TY - GEN
T1 - Gravitational waves and energy momentum quanta
AU - Dereli, Tekin
AU - Tucker, Robin
PY - 2007
Y1 - 2007
N2 - We review the role of the classical stress-energy tensor in defining the concept of energy and its conservation in classical field theory. Conserved electromagnetic currents associated with spacetime Killing symmetries are discussed in an attempt to draw analogies with the concepts of photons and gravitons. By embedding Einstein’s original formulation of General Relativity into a broader context we show that a dynamic covariant description of gravitational stress-energy emerges naturally from a variational principle. A tensor T G is constructed from a contraction of the Bel tensor with a symmetric covariant second degree tensor field Φ that has a form analogous to the stress-energy tensor of the Maxwell field in an arbitrary space-time. For plane-fronted gravitational waves helicity-2 polarised (graviton) states can be identified carrying non-zero energy and momentum.
AB - We review the role of the classical stress-energy tensor in defining the concept of energy and its conservation in classical field theory. Conserved electromagnetic currents associated with spacetime Killing symmetries are discussed in an attempt to draw analogies with the concepts of photons and gravitons. By embedding Einstein’s original formulation of General Relativity into a broader context we show that a dynamic covariant description of gravitational stress-energy emerges naturally from a variational principle. A tensor T G is constructed from a contraction of the Bel tensor with a symmetric covariant second degree tensor field Φ that has a form analogous to the stress-energy tensor of the Maxwell field in an arbitrary space-time. For plane-fronted gravitational waves helicity-2 polarised (graviton) states can be identified carrying non-zero energy and momentum.
U2 - 10.1007/978-3-7643-7978-0_14
DO - 10.1007/978-3-7643-7978-0_14
M3 - Conference contribution/Paper
SN - 9783764379773
SP - 283
EP - 292
BT - Quantum gravity
A2 - Fauser, Bertfried
A2 - Tolksdorf, Jürgen
A2 - Zeidler, Eberhard
PB - Birkhäuser Verlag
CY - Basel
ER -