39 citations · 86 across the 15 of their papers we have counts for
15 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…
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*…
The Sagittarius stellar stream embedded in a fermionic dark matter halo
Santiago Collazo, Martín 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…
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…
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…
Imaging fermionic dark matter cores at the center of galaxies
Joaquin Pelle, Carlos R. Argüelles, Florencia L. Vieyro +5
Current images of the supermassive black hole (SMBH) candidates at the center of our Galaxy and M87 have opened an unprecedented era for studying strong gravity and the nature of r…
Accretion discs onto supermassive compact objects: a portal to dark matter physics in active galaxies
C. Millauro, C. R. Argüelles, F. L. Vieyro +2
The study of the physics of accretion discs developed around the supermassive black hole (BH) candidates are essential theoretical tools to test their nature. Here, we study the ac…
On the growth of supermassive black holes formed from the gravitational collapse of fermionic dark matter cores
C. R. Argüelles, K. Boshkayev, A. Krut +5
Observations support the idea that supermassive black holes (SMBHs) power the emission at the center of active galaxies. However, contrary to stellar-mass BHs, there is a poor unde…
The Role of Self Interactions in the Cosmological Evolution of Warm Dark Matter
Rafael Ignacio Yunis, Carlos R. Argüelles, Diana López Nacir +3
In this work we present a summary of recent studies on the effects of elastic self interactions in the evolution of Warm Dark Matter models (WDM), focusing on structure formation a…
Reshaping our understanding on structure formation with the quantum nature of the dark matter
Carlos R. Argüelles, Eduar A. Becerra-Vergara, Andreas Krut +3
We study the non-linear structure formation in cosmology accounting for the quantum nature of the dark matter (DM) particles in the initial conditions at decoupling, as well as in…
What does lie at the Milky Way centre? Insights from the S2 star orbit precession
C. R. Argüelles, M. F. Mestre, E. A. Becerra-Vergara +4
It has been recently demonstrated that both, a classical Schwarzschild black hole (BH), and a dense concentration of self-gravitating fermionic dark matter (DM) placed at the Galax…
On the formation and stability of fermionic dark matter halos in a cosmological framework
Carlos R. Argüelles, Manuel I. Díaz, Andreas Krut +1
The formation and stability of collisionless self-gravitating systems are long standing problems, which date back to the work of D. Lynden-Bell on violent relaxation and extends to…
Can fermionic dark matter mimic supermassive black holes?
C. R. Argüelles, A. Krut, J. A. Rueda +1
We analyze the intriguing possibility to explain both dark mass components in a galaxy: the dark matter (DM) halo and the supermassive dark compact object lying at the center, by a…
Self-gravitating system of semidegenerate fermions as central objects and dark matter halos in galaxies
Bernardo M. O. Fraga, Carlos R. Arguelles, Remo Ruffini
We propose a unified model for dark matter haloes and central galactic objects as a self-gravitating system of semidegenerated fermions in thermal equilibrium. We consider spherica…