Cactus Code Thorn QuasiLocalMeasures
Thorn Author(s)     : Olaf Dreyer
                      Badri Krishnan
                      Erik Schnetter <schnetter@cct.lsu.edu>
                      Deirdre Shoemaker
                      Michael Jasiulek
Thorn Maintainer(s) : Erik Schnetter <schnetter@cct.lsu.edu>
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Purpose of the thorn:

Calculate quasi-local measures such as masses, momenta, or angular
momenta and related quantities on closed two-dimentional surfaces,
including on horizons.


Some Literature:

Isolated Horizons:

Olaf Dreyer, Badri Krishnan, Erik Schnetter, Deirdre Shoemaker
Introduction to Isolated Horizons in Numerical Relativity
Phys. Rev. D 67 (2003) 024018
arXiv:gr-qc/0206008

Multipole moments:

Abhay Ashtekar, Badri Krishnan
Dynamical Horizons and their Properties
Phys. Rev. D 68 (2003) 104030
arXiv:gr-qc/0308033

Dynamical horizons:

Erik Schnetter, Badri Krishnan, Florian Beyer
ntroduction to dynamical horizons in numerical relativity
Phys. Rev. D 74 (2006) 024028
arXiv:gr-qc/0604015

Quasi-local measures:

László B. Szabados
Quasi-Local Energy-Momentum and Angular Momentum in GR: A Review Article
Living Rev. Relativity 7 (2004) 4
http://www.livingreviews.org/lrr-2004-4

Andrew P. Lundgren, Bjoern S. Schmekel, James W. York, Jr.
Self-Renormalization of the Classical Quasilocal Energy
arXiv:gr-qc/0610088

Tetrad formalism:

GRwiki
http://grwiki.physics.ncsu.edu/