FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2783166611> ?p ?o ?g. }

• W2783166611 abstract "The numerical integration of particle trajectories in curved spacetimes is fundamental for obtaining realistic models of the particle dynamics around massive compact objects such as black holes and neutron stars. Generalized algorithms capable of handling generic metrics are required for studies of both standard spacetimes Schwarzschild and Kerr metrics) and non-standard spacetimes (e.g. Schwarzschild metric plus non-classical perturbations or multiple black hole metrics). The most commonly employed explicit numerical schemes (e.g. Runge-Kutta) are incapable of producing highly accurate results at critical points, e.g. in the regions close to the event horizon where gravity causes extreme curvature of the spacetime, at an acceptable computational cost. Here, we describe a generalized algorithm for the numerical integration of time-like (massive particles) and null (photons) geodesics in any given 3+1 split spacetime. We introduce a new, exactly energy-conserving implicit integration scheme based on the preservation of the underlying Hamiltonian, and we compare its properties with a standard fourth-order Runge-Kutta explicit scheme and an implicit midpoint scheme. We test the numerical performance of the three schemes against analytical solutions of test particle and photon orbits in Schwarzschild and Kerr spacetimes. We also prove the versatility of our framework in handling more exotic metrics such as Morris-Thorne wormholes and quantum-perturbed Schwarzschild black holes. The generalized approach is also discussed in the perspective of future extensions to more complex particle dynamics, e.g. the addition of the Lorentz force acting on charged particles." @default.
• W2783166611 created "2018-01-26" @default.
• W2783166611 creator A5009390121 @default.
• W2783166611 creator A5011616691 @default.
• W2783166611 creator A5029559893 @default.
• W2783166611 creator A5032765567 @default.
• W2783166611 date "2018-01-08" @default.
• W2783166611 modified "2023-09-27" @default.
• W2783166611 title "Generalized, energy-conserving numerical integration of geodesics in general relativity" @default.
• W2783166611 cites W1488349354 @default.
• W2783166611 cites W161743470 @default.
• W2783166611 cites W1667086166 @default.
• W2783166611 cites W1670927892 @default.
• W2783166611 cites W1969206944 @default.
• W2783166611 cites W1984330431 @default.
• W2783166611 cites W1990678913 @default.
• W2783166611 cites W1997595684 @default.
• W2783166611 cites W2022167638 @default.
• W2783166611 cites W2031106768 @default.
• W2783166611 cites W2034849850 @default.
• W2783166611 cites W2040588873 @default.
• W2783166611 cites W2042039095 @default.
• W2783166611 cites W2046386405 @default.
• W2783166611 cites W2046537475 @default.
• W2783166611 cites W2065321488 @default.
• W2783166611 cites W2073862476 @default.
• W2783166611 cites W2092546684 @default.
• W2783166611 cites W2092999319 @default.
• W2783166611 cites W2154750553 @default.
• W2783166611 cites W2231773349 @default.
• W2783166611 cites W2297672260 @default.
• W2783166611 cites W2339984100 @default.
• W2783166611 cites W2341283081 @default.
• W2783166611 cites W2430246775 @default.
• W2783166611 cites W2475059334 @default.
• W2783166611 cites W2479388119 @default.
• W2783166611 cites W2489724854 @default.
• W2783166611 cites W2528736423 @default.
• W2783166611 cites W2586283691 @default.
• W2783166611 cites W2593379902 @default.
• W2783166611 cites W2594279543 @default.
• W2783166611 cites W2775381858 @default.
• W2783166611 cites W2790699196 @default.
• W2783166611 cites W2947056241 @default.
• W2783166611 cites W3098746746 @default.
• W2783166611 cites W3100868871 @default.
• W2783166611 cites W3101719736 @default.
• W2783166611 cites W3101850868 @default.
• W2783166611 cites W3102615744 @default.
• W2783166611 cites W3105829920 @default.
• W2783166611 cites W3119354751 @default.
• W2783166611 cites W587555435 @default.
• W2783166611 hasPublicationYear "2018" @default.
• W2783166611 type Work @default.
• W2783166611 sameAs 2783166611 @default.
• W2783166611 citedByCount "1" @default.
• W2783166611 countsByYear W27831666112020 @default.
• W2783166611 crossrefType "posted-content" @default.
• W2783166611 hasAuthorship W2783166611A5009390121 @default.
• W2783166611 hasAuthorship W2783166611A5011616691 @default.
• W2783166611 hasAuthorship W2783166611A5029559893 @default.
• W2783166611 hasAuthorship W2783166611A5032765567 @default.
• W2783166611 hasConcept C104954878 @default.
• W2783166611 hasConcept C115304011 @default.
• W2783166611 hasConcept C121332964 @default.
• W2783166611 hasConcept C130187892 @default.
• W2783166611 hasConcept C134306372 @default.
• W2783166611 hasConcept C136125196 @default.
• W2783166611 hasConcept C147452769 @default.
• W2783166611 hasConcept C148292158 @default.
• W2783166611 hasConcept C161773026 @default.
• W2783166611 hasConcept C165818556 @default.
• W2783166611 hasConcept C29013271 @default.
• W2783166611 hasConcept C31258907 @default.
• W2783166611 hasConcept C32127712 @default.
• W2783166611 hasConcept C33332235 @default.
• W2783166611 hasConcept C33923547 @default.
• W2783166611 hasConcept C41008148 @default.
• W2783166611 hasConcept C44715290 @default.
• W2783166611 hasConcept C50341732 @default.
• W2783166611 hasConcept C62520636 @default.
• W2783166611 hasConcept C74172769 @default.
• W2783166611 hasConcept C74650414 @default.
• W2783166611 hasConcept C89305328 @default.
• W2783166611 hasConceptScore W2783166611C104954878 @default.
• W2783166611 hasConceptScore W2783166611C115304011 @default.
• W2783166611 hasConceptScore W2783166611C121332964 @default.
• W2783166611 hasConceptScore W2783166611C130187892 @default.
• W2783166611 hasConceptScore W2783166611C134306372 @default.
• W2783166611 hasConceptScore W2783166611C136125196 @default.
• W2783166611 hasConceptScore W2783166611C147452769 @default.
• W2783166611 hasConceptScore W2783166611C148292158 @default.
• W2783166611 hasConceptScore W2783166611C161773026 @default.
• W2783166611 hasConceptScore W2783166611C165818556 @default.
• W2783166611 hasConceptScore W2783166611C29013271 @default.
• W2783166611 hasConceptScore W2783166611C31258907 @default.
• W2783166611 hasConceptScore W2783166611C32127712 @default.
• W2783166611 hasConceptScore W2783166611C33332235 @default.
• W2783166611 hasConceptScore W2783166611C33923547 @default.
• W2783166611 hasConceptScore W2783166611C41008148 @default.

• next