Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Detweiler, Steven"'
Publikováno v:
Phys. Rev. Lett. 108, 191102 (2012)
The motion of a charged particle is influenced by the self-force arising from the particle's interaction with its own field. In a curved spacetime, this self-force depends on the entire past history of the particle and is difficult to evaluate. As a
Externí odkaz:
http://arxiv.org/abs/1112.4821
Autor:
Detweiler, Steven
A point particle of small mass m moves in free fall through a background vacuum spacetime metric g_ab and creates a first-order metric perturbation h^1ret_ab that diverges at the particle. Elementary expressions are known for the singular m/r part of
Externí odkaz:
http://arxiv.org/abs/1107.2098
The relativistic motion of a compact binary system moving in circular orbit is investigated using the post-Newtonian (PN) approximation and the perturbative self-force (SF) formalism. A particular gauge-invariant observable quantity is computed as a
Externí odkaz:
http://arxiv.org/abs/1007.2614
Publikováno v:
Phys.Rev.D81:084033,2010
We continue a previous work on the comparison between the post-Newtonian (PN) approximation and the gravitational self-force (SF) analysis of circular orbits in a Schwarzschild background. We show that the numerical SF data contain physical informati
Externí odkaz:
http://arxiv.org/abs/1002.0726
Publikováno v:
Phys.Rev.D81:064004,2010
The problem of a compact binary system whose components move on circular orbits is addressed using two different approximation techniques in general relativity. The post-Newtonian (PN) approximation involves an expansion in powers of v/c<<1, and is m
Externí odkaz:
http://arxiv.org/abs/0910.0207
Autor:
Detweiler, Steven
The gravitational field of a particle of small mass $\mu$ moving through curved spacetime, with metric $g_{ab}$, is naturally and easily decomposed into two parts each of which satisfies the perturbed Einstein equations through $O(\mu)$. One part is
Externí odkaz:
http://arxiv.org/abs/0908.4363
Publikováno v:
Phys.Rev.D80:084021,2009
Prescriptions for numerical self-force calculations have traditionally been designed for frequency-domain or (1+1) time-domain codes which employ a mode decomposition to facilitate in carrying out a delicate regularization scheme. This has prevented
Externí odkaz:
http://arxiv.org/abs/0908.2138
Publikováno v:
Phys.Rev.D78:124024,2008
Recently, two independent calculations have been presented of finite-mass ("self-force") effects on the orbit of a point mass around a Schwarzschild black hole. While both computations are based on the standard mode-sum method, they differ in several
Externí odkaz:
http://arxiv.org/abs/0810.2530
Autor:
Detweiler, Steven
Publikováno v:
Phys.Rev.D77:124026,2008
A small mass \mu in orbit about a much more massive black hole M moves along a world line that deviates from a geodesic of the black hole geometry by O(\mu/M). This deviation is said to be caused by the gravitational self-force of the metric perturba
Externí odkaz:
http://arxiv.org/abs/0804.3529
Autor:
Vega, Ian, Detweiler, Steven
Publikováno v:
Phys.Rev.D77:084008,2008
We propose an approach for the calculation of self-forces, energy fluxes and waveforms arising from moving point charges in curved spacetimes. As opposed to mode-sum schemes that regularize the self-force derived from the singular retarded field, thi
Externí odkaz:
http://arxiv.org/abs/0712.4405