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Showing 2009 · gr-qcShow all

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gr-qc2009★ 10 cited

On well-posedness, linear perturbations and mass conservation for axisymmetric Einstein equation

Sergio Dain, Omar E. Ortiz

For axially symmetric solutions of Einstein equations there exists a gauge which has the remarkable property that the total mass can be written as a conserved, positive definite, i…

gr-qc2009★ 9 cited

Random template placement and prior information

Christian Röver

In signal detection problems, one is usually faced with the task of searching a parameter space for peaks in the likelihood function which indicate the presence of a signal. Random…

gr-qc2009★ 71 cited

From covariant to canonical formulations of discrete gravity

Bianca Dittrich, Philipp A Hoehn

Starting from an action for discretized gravity we derive a canonical formalism that exactly reproduces the dynamics and (broken) symmetries of the covariant formalism. For lineari…

gr-qc2009★ 102 cited

Characteristic extraction in numerical relativity: binary black hole merger waveforms at null infinity

C. Reisswig, N. T. Bishop, D. Pollney +1

The accurate modeling of gravitational radiation is a key issue for gravitational wave astronomy. As simulation codes reach higher accuracy, systematic errors inherent in current n…

gr-qc2009★ 8 cited

Born--Oppenheimer decomposition for quantum fields on quantum spacetimes

Kristina Giesel, Johannes Tambornino, Thomas Thiemann

Quantum Field Theory on Curved Spacetime (QFT on CS) is a well established theoretical framework which intuitively should be a an extremely effective description of the quantum nat…

gr-qc2009★ 50 cited

Mock LISA data challenge for the galactic white dwarf binaries

Arkadiusz Błaut, Stanislav Babak, Andrzej Królak

We present data analysis methods used in detection and the estimation of parameters of gravitational wave signals from the white dwarf binaries in the mock LISA data challenge. Our…