• Corpus ID: 248987037

Experimental observation of violent relaxation and the formation of out-of-equilibrium quasi-stationary states

@inproceedings{Lovisetto2022ExperimentalOO,
  title={Experimental observation of violent relaxation and the formation of out-of-equilibrium quasi-stationary states},
  author={Martino Lovisetto and Maria Chiara Braidotti and Radivoje Prizia and C. Michel and Didier Clamond and Morgane Bellec and Ewan M. Wright and B. Marcos and Daniele Faccio},
  year={2022}
}
Large scale structures in the Universe, ranging from globular clusters to entire galaxies, are the manifestation of relaxation to out-of-equilibrium states that are not described by standard statistical mechanics at equilibrium. Instead, they are formed through a process of a very different nature, i.e. violent relaxation . However, astrophysical time-scales are so large that it is not possible to directly observe these relaxation dynamics and therefore verify the details of the violent… 

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SHOWING 1-10 OF 35 REFERENCES
Statistical Mechanics of Violent Relaxation in Stellar Systems
We discuss the statistical mechanics of violent relaxation in stellar systems following the pioneering work of (1967). The solutions of the gravitational Vlasov-Poisson system develop finer and finer
Optical analogues of the Newton–Schrödinger equation and boson star evolution
TLDR
The results show that optical analogues can be used to shed new light on inaccessible gravitational objects and, under appropriate conditions, identically reproduces such equation in two dimensions.
Optical simulations of gravitational effects in the Newton–Schrödinger system
Some predictions of Einstein’s theory of general relativity (GR) still elude observation, hence analogous systems, such as optical set-ups, have been suggested as platforms for emulating GR
New evidence for dark matter
We present a new universal relation, satisfied by matter distributions at all observed scales, and show its amazingly good and detailed agreement with the predictions of the most up-to-date pure dark
On chaos in the oscillations of galaxies
This paper describes a search for chaotic behaviour in a low-dimensional model of the oscillations of a galaxy. The governing equations of the model are the complete set of moment equations of the
Ultralight scalars as cosmological dark matter
Many aspects of the large-scale structure of the Universe can be described successfully using cosmological models in which 27±1% of the critical mass-energy density consists of cold dark matter
Evidence for electron Landau damping in space plasma turbulence
TLDR
A field-particle correlation technique is presented to directly measure the transfer of energy between the turbulent electromagnetic field and electrons in the Earth’s magnetosheath, the region of solar wind downstream of the Earth's bow shock, and shows a signature consistent with Landau damping.
Schrödinger-Poisson–Vlasov-Poisson correspondence
The Schrodinger-Poisson equations describe the behavior of a superfluid Bose-Einstein condensate under self-gravity with a 3D wave function. As ℏ/m→0, m being the boson mass, the equations have been
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