Zobrazeno 1 - 10
of 168
pro vyhledávání: '"Kol, Barak"'
We determine the gravito-magnetic Love numbers of non-rotating black holes in all spacetime dimensions through a novel and direct derivation. The Ishibashi- Kodama master field and its associated field equation are avoided. The matching to the EFT va
Externí odkaz:
http://arxiv.org/abs/2402.16172
The flux-based statistical theory of the non-hierarchical three-body system predicts that the chaotic outcome distribution reduces to the chaotic emissivity function times a known function, the asymptotic flux. Here, we measure the chaotic emissivity
Externí odkaz:
http://arxiv.org/abs/2302.08312
The micro-canonical phase-space volume for the three-body problem is an elementary quantity of intrinsic interest, and within the flux-based statistical theory, it sets the scale of the disintegration time. While the bare phase-volume diverges, we sh
Externí odkaz:
http://arxiv.org/abs/2205.04294
Autor:
Kol, Barak
Publikováno v:
Celest. Mech. Dyn. Astron. 135, 29 (2023)
The three-body problem is a fundamental long-standing open problem, with applications in all branches of physics, including astrophysics, nuclear physics and particle physics. In general, conserved quantities allow to reduce the formulation of a mech
Externí odkaz:
http://arxiv.org/abs/2107.12372
We present an extensive comparison between the statistical properties of non-hierarchical three-body systems and the corresponding three-body theoretical predictions. We perform and analyze 1 million realizations for each different initial condition
Externí odkaz:
http://arxiv.org/abs/2101.03661
The Symmetries of Feynman Integrals (SFI) method is extended for the first time to incorporate an irreducible numerator. This is done in the context of the so-called vacuum and propagator seagull diagrams, which have 3 and 2 loops, respectively, and
Externí odkaz:
http://arxiv.org/abs/2009.04947
Autor:
Kol, Barak
The gravitational three-body problem is a rich open problem, dating back to Newton. It serves as a prototypical example of a chaotic system and has numerous applications in astrophysics. Generically, the motion is non-integrable and susceptible to di
Externí odkaz:
http://arxiv.org/abs/2002.11496
Autor:
Kol, Barak, Mazumdar, Subhajit
We study the most general triangle diagram through the Symmetries of Feynman Integrals (SFI) approach. The SFI equation system is obtained and presented in a simple basis. The system is solved providing a novel derivation of an essentially known expr
Externí odkaz:
http://arxiv.org/abs/1909.04055
Autor:
Kol, Barak, Shir, Ruth
We study a two loop diagram of propagator type with general parameters through the Symmetries of Feynman Integrals (SFI) method. We present the SFI group and equation system, the group invariant in parameter space and a general representation as a li
Externí odkaz:
http://arxiv.org/abs/1809.05040
Autor:
Kol, Barak, Mazumdar, Subhajit
Publikováno v:
Phys. Rev. D 99, 045018 (2019)
The Symmetries of Feynman Integrals (SFI) is a method for evaluating Feynman Integrals which exposes a novel continuous group associated with the diagram which depends only on its topology and acts on its parameters. Using this method we study the ki
Externí odkaz:
http://arxiv.org/abs/1808.02494