Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Goldberger, Walter D."'
Autor:
Goldberger, Walter D.
I review the effective field theory (EFT) description of gravitating compact objects. The focus is on kinematic regimes where gravity is perturbative, in particular the adiabatic inspiral phase relevant to gravitational wave detection. For such confi
Externí odkaz:
http://arxiv.org/abs/2212.06677
Autor:
Goldberger, Walter D.
In this whitepaper, I describe modern applications of effective field theory (EFT) techniques to classical and quantum gravity, with relevance to problems in astrophysics and cosmology. As in applications of EFT to high-energy, nuclear, or condensed
Externí odkaz:
http://arxiv.org/abs/2206.14249
We generalize the worldline EFT formalism developed in [4-9] to calculate the non-conservative tidal effects on spinning black holes in a long wavelength approximation that is valid to all orders in the magnitude of the spin. We present results for t
Externí odkaz:
http://arxiv.org/abs/2012.14869
Using Effective Field Theory (EFT) methods, we compute the effects of horizon dissipation on the gravitational interactions of relativistic binary black hole systems. We assume that the dynamics is perturbative, i.e it admits an expansion in powers o
Externí odkaz:
http://arxiv.org/abs/2007.00731
Publikováno v:
Phys. Rev. Lett. 125, 211301 (2020)
We consider the effects of off-shell Hawking radiation on scattering processes involving black holes coupled to quantum fields. The focus here is to the case of gravitational scattering of a scalar field mediated by the exchange of virtual Hawking gr
Externí odkaz:
http://arxiv.org/abs/2007.00726
We develop an effective theory which describes black holes with quantum mechanical horizons that is valid at scales long compared to the Schwarzschild radius but short compared to the lifetime of the black hole. Our formalism allows one to calculate
Externí odkaz:
http://arxiv.org/abs/1912.13435
Autor:
Goldberger, Walter D., Li, Jingping
Publikováno v:
JHEP 2002 (2020) 092
We extend Shen's recent formulation (arXiv:1806.07388) of the classical double copy, based on explicit color-kinematic duality, to the case of finite-size sources with non-zero spin. For the case of spinning Yang-Mills sources, the most general consi
Externí odkaz:
http://arxiv.org/abs/1912.01650
Publikováno v:
Phys. Rev. D 97, 105018 (2018)
We extend the perturbative double copy between radiating classical sources in gauge theory and gravity to the case of spinning particles. We construct, to linear order in spins, perturbative radiating solutions to the classical Yang-Mills equations s
Externí odkaz:
http://arxiv.org/abs/1712.09250
Publikováno v:
Phys. Rev. D 97, 085019 (2018)
We extend the perturbative classical double copy to the analysis of bound systems. We first obtain the leading order perturbative gluon radiation field sourced by a system of interacting color charges in arbitrary time dependent orbits, and test its
Externí odkaz:
http://arxiv.org/abs/1711.09493
Publikováno v:
Phys. Rev. D 96, 065009 (2017)
We find double copy relations between classical radiating solutions in Yang-Mills theory coupled to dynamical color charges and their counterparts in a cubic bi-adjoint scalar field theory which interacts linearly with particles carrying bi-adjoint c
Externí odkaz:
http://arxiv.org/abs/1705.09263