Path integral method for quantum dissipative systems with dynamical friction: Applications to quantum dots/zero-dimensional nanocrystals
Sign Up to like & getrecommendations! Published in 2020 at "Superlattices and Microstructures"
DOI: 10.1016/j.spmi.2020.106581
Abstract: Abstract In this study, a path integral approach for an isolated dynamical system which contains a moving body and its surrounding coupled to each other by a fractional dynamical friction is constructed. The dissipative system… read more here.
Keywords: dynamical friction; friction; applications quantum; time dependent ... See more keywords
Dynamical friction in rotating ultralight dark matter galactic cores
Sign Up to like & getrecommendations! Published in 2024 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ad8a11
Abstract: Dynamical friction and stellar orbital motion in spiral galaxies with dark matter composed of ultralight bosons in the state of rotating Bose–Einstein condensate (BEC) are studied. It is found that the dynamical friction force is… read more here.
Keywords: dark matter; ultralight dark; friction; friction rotating ... See more keywords
Dynamical friction in ultralight dark matter: Plummer sphere perspective
Sign Up to like & getrecommendations! Published in 2024 at "Physica Scripta"
DOI: 10.1088/1402-4896/adebb7
Abstract: In models of dark matter composed of feebly interacting ultralight bosons in the state of Bose–Einstein condensate, the dynamical friction force acting on circularly moving globular clusters modelled as Plummer spheres is determined. Analytic expressions… read more here.
Keywords: friction; dark matter; plummer sphere; dynamical friction ... See more keywords
Dynamical friction due to fuzzy dark matter on satellites described by axisymmetric logarithmic potentials
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2023/04/071
Abstract: A plausible dark matter candidate is an ultralight bosonic particle referred to as fuzzy dark matter. The equivalent mass-energy of the fuzzy dark matter boson is ∼ 10-22 eV and has a corresponding de Broglie… read more here.
Keywords: matter; dynamical friction; fuzzy dark; dark matter ... See more keywords
Dynamical friction can flip the hierarchical three-body system
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2025/08/010
Abstract: In recent years, the long-term effects of non-linear perturbations were found to be important for the evolution of the hierarchical triple system, which, for the central third body of a larger mass, can significantly suppress… read more here.
Keywords: orbital flip; system; flip; dynamical friction ... See more keywords
Negative dynamical friction on compact objects moving through dense gas
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa013
Abstract: An over-dense wake is created by a gravitating object moving through a gaseous medium, and this wake pulls back on the object and slows it down. This is conventional dynamical friction in a gaseous medium.… read more here.
Keywords: black holes; dynamical friction; friction; negative dynamical ... See more keywords
Gaseous dynamical friction under radiative feedback: do intermediate-mass black holes speed up or down?
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa1338
Abstract: Coalescence of intermediate-mass black holes (IMBHs) as a result of the migration toward galactic centers via dynamical friction may contribute to the formation of supermassive BHs. Here we reinvestigate the gaseous dynamical friction, which was… read more here.
Keywords: black holes; intermediate mass; gaseous dynamical; mass black ... See more keywords
Gaseous wakes and dynamical friction: mass-losing and mass-gaining perturbers
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty2610
Abstract: An extended gravitational object embedded in a parent system comprised of gas and collisionless particles may undergo both dynamical friction (DF) and mass loss by tidal forces. If the object is compact enough, it can… read more here.
Keywords: dynamical friction; mass gaining; mass losing; mass ... See more keywords
The influence of dark matter halo on the stellar stream asymmetry via dynamical friction
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz1313
Abstract: We study the effect of dynamical friction on globular clusters and on the stars evaporated from the globular clusters (stellar streams) moving in a galactic halo. Due to dynamical friction, the position of a globular… read more here.
Keywords: stream; dynamical friction; position; dark matter ... See more keywords
Dynamical friction of black holes in ultralight dark matter
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review D"
DOI: 10.1103/physrevd.105.083008
Abstract: In this work we derive simple closed-form expressions for the dynamical friction acting on black holes moving through ultralight (scalar field) dark matter, covering both nonrelativistic and relativistic black hole speeds. Our derivation is based… read more here.
Keywords: black holes; dark matter; dynamical friction; ultralight dark ... See more keywords
Sharpening the dark matter signature in gravitational waveforms. II. Numerical simulations
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review D"
DOI: 10.1103/physrevd.111.063071
Abstract: Future gravitational wave observatories can probe dark matter by detecting the dephasing in the waveform of binary black hole mergers induced by dark matter overdensities. Such a detection hinges on the accurate modelling of the… read more here.
Keywords: dark matter; sharpening dark; signature gravitational; matter ... See more keywords