Quasilocal center-of-mass for teleparallel gravity

James M. Nester, Fei Hong Ho, Chiang Mei Chen

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

2 Scopus citations


Asymptotically flat gravitating systems have 10 conserved quantities, which lack proper local densities. It has been hoped that the teleparallel equivalent of Einstein's GR (TEGR, aka GR| |) could solve this gravitational energy-momentum localization problem. Meanwhile a new idea: quasilocal quantities, has come into favor. The earlier quasilocal investigations focused on energy-momentum. Recently we considered quasilocal angular momentum for the teleparallel theory and found that the popular expression (unlike our "covariant-symplectic" one) gives the correct result only in a certain frame. We now report that the center-of-mass moment, which has largely been neglected, gives an even stronger requirement. We found (independent of the frame gauge) that our "covariant symplectic" Hamiltonian-boundary-term quasilocal expression succeeds for all the quasilocal quantities, while the usual expression cannot give the desired centerof- mass moment. We also conclude, contrary to hopes, that the teleparallel formulation appears to have no advantage over GR with regard to localization.

Original languageEnglish
Title of host publicationThe Tenth Marcel Grossmann Meeting
Subtitle of host publicationOn Recent Developments in Theoretical and Experimental General Relativity, Gravitation and Relativistic Field Theories
PublisherWorld Scientific Publishing Co.
Number of pages12
ISBN (Electronic)9789812704030
ISBN (Print)9789812566676
StatePublished - 1 Jan 2006


Dive into the research topics of 'Quasilocal center-of-mass for teleparallel gravity'. Together they form a unique fingerprint.

Cite this