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- Helmholtz Institute JenaDE407 papers
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60 papers · 1 filter
Comparison between numerical relativity and a new class of post-Newtonian gravitational-wave phase evolutions: the non-spinning equal-mass case
Achamveedu Gopakumar, Mark Hannam, Sascha Husa +1
We compare the phase evolution of equal-mass nonspinning black-hole binaries from numerical relativity (NR) simulations with post-Newtonian (PN) results obtained from three PN appr…
Comparison between numerical-relativity and post-Newtonian waveforms from spinning binaries: the orbital hang-up case
Mark Hannam, Sascha Husa, Bernd Brügmann +1
We compare results from numerical simulations of spinning binaries in the "orbital hangup" case, where the binary completes at least nine orbits before merger, with post-Newtonian…
Gravitational waves from compact binaries inspiralling along post-Newtonian accurate eccentric orbits: Data analysis implications
M. Tessmer, A. Gopakumar
Compact binaries inspiralling along eccentric orbits are plausible gravitational wave (GW) sources for the ground-based laser interferometers. We explore the losses in the event ra…
Photon emission by an atom in a lossy cavity
C. Di Fidio, W. Vogel, M. Khanbekyan +1
The dynamics of an initially excited two-level atom in a lossy cavity is studied by using the quantum trajectory method. Unwanted losses are included, such as photon absorption and…
The next-to-leading order gravitational spin(1)-spin(2) dynamics in Hamiltonian form
Jan Steinhoff, Steven Hergt, Gerhard Schäfer
Based on recent developments by the authors a next-to-leading order spin(1)-spin(2) Hamiltonian is derived for the first time. The result is obtained within the canonical formalism…
Higher-order-in-spin interaction Hamiltonians for binary black holes from source terms of Kerr geometry in approximate ADM coordinates
Steven Hergt, Gerhard Schäfer
The Kerr metric outside the ergosphere is transformed into ADM coordinates up to the orders and , respectively in radial coordinate and reduced angular momentum va…