6 papers
Scale-Invariant Open Quantum Systems
Carlos Argüelles, Gabriela Barenboim, Gonzalo Herrera +2
We develop a complete theoretical framework for open quantum systems coupled to scale-invariant environments. We show that such environments are universally described by unparticle…
Universal Description of Decoherence in Scale-Invariant Environments
Carlos Argüelles, Gabriela Barenboim, Gonzalo Herrera +2
When a quantum system couples to a scale-invariant environment, what form must its decoherence take? We prove that the answer is unique: under locality, Lorentz invariance, unitari…
Thermodynamics of self-gravitating fermions as a robust theory for dark matter halos: Stability analysis applied to the Milky Way
A. Krut, C. R. Argüelles, P. -H. Chavanis
We present a framework for dark matter (DM) halo formation based on a kinetic theory of self-gravitating fermions together with a solid connection to thermodynamics. Based on maxim…
The dynamics of S-stars and G-sources orbiting a supermassive compact object made of fermionic dark matter
Valentina Crespi, Carlos R. Argüelles, Eduar A. Becerra-Vergara +4
Surrounding Sgr A*, a cluster of young and massive stars coexist with a population of dust-enshrouded objects, whose astrometric data can be used to scrutinize the nature of Sgr A*…
Fermionic Dark Matter spikes: origin and growth of Black Hole seeds
Valentina Crespi, Carlos R. Argüelles, Jorge A. Rueda
We characterize the overdensity (spike) of fermionic dark matter (DM) particles around a supermassive black hole (SMBH) within a general relativistic analysis. The initial DM halo…
The Sagittarius stellar stream embedded in a fermionic dark matter halo
Santiago Collazo, MartÃn F. Mestre, Carlos R. Argüelles
Stellar streams are essential tracers of the gravitational potential of the Milky Way, with key implications to the problem of dark matter (DM) model distributions, either within o…