40 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Consejo Nacional de Investigaciones Científicas y TécnicasAR24 papers
- Universidad Nacional de La PlataAR10 papers
- Instituto de Física La PlataAR7 papers
- Centro Brasileiro de Pesquisas FísicasBR6 papers
- Instituto de Astrofísica de CanariasES6 papers
- Universidad de La LagunaES6 papers
- Universidade Federal do Rio de JaneiroBR5 papers
- Universidad de GranadaES4 papers
- Santa Fe InstituteUS3 papers
- Universidad Nacional Autónoma de MéxicoMX3 papers
- Universidad Nacional de CórdobaAR3 papers
- Instituto Nacional de Ciência e Tecnologia de Sistemas ComplexosBR2 papers
28 papers
Constraining the shape of dark matter haloes using only starlight. I. A new technique and its application to the galaxy Nube
Jorge Sanchez Almeida, Ignacio Trujillo, Mireia Montes +1
We present a new technique to constrain the gravitational potential of a galaxy from the observed stellar mass surface density alone under a number of assumptions. It uses the clas…
The stellar distribution in ultra-faint dwarf galaxies suggests deviations from the collision-less cold dark matter paradigm
Jorge Sanchez Almeida, Ignacio Trujillo, Angel R. Plastino
Unraveling the nature of dark matter (DM) stands as a primary objective in modern physics. Here we present evidence suggesting deviations from the collisionless Cold DM (CDM) parad…
Application of the Eddington inversion method to constrain the dark matter halo of galaxies using only observed surface brightness profiles
Jorge Sanchez Almeida, Angel R. Plastino, Ignacio Trujillo
*** Context: The halos of low-mass galaxies may allow us to constrain the nature of dark matter (DM), but the kinematic measurements to diagnose the required properties are technic…
Can cuspy dark matter dominated halos hold cored stellar mass distributions?
Jorge Sanchez Almeida, Angel R. Plastino, Ignacio Trujillo
According to the current concordance cosmological model, the dark matter (DM) particles are collision-less and produce self-gravitating structures with a central cusp which, genera…
A theoretical model for tellurite-sulfates NaCu(TeO)(SO)(OH) and KCu(TeO)(SO)(OH)
I. L. Bartolom/'e, L. Errico, V. Fernandez +3
A theoretical model for two new tellurite-sulfates, namely NaCu(TeO)(SO)(OH) and KCu(TeO)(SO) (OH) is determined to be compatible wi…
Tunable mode entanglement: topological Su-Schrieffer-Heeger (SSH) chain with an embedded Aharonov-Bohm quantum ring
A. P. Garrido, A. R. Plastino, M. L. Ladrón de Guevara +1
We investigate a variant of the SSH model consisting of an SSH chain with an embedded Aharonov-Bohm quantum ring. The embedded ring gives rise to domain wall states whose energy le…
Physically motivated fit to mass surface density profiles observed in galaxies
J. Sanchez Almeida, I. Trujillo, A. R. Plastino
Polytropes have gained renewed interest because they account for several seemingly-disconnected observational properties of galaxies. Here we study if polytropes are also able to e…
The principle of maximum entropy explains the cores observed in the mass distribution of dwarf galaxies
Jorge Sanchez Almeida, Ignacio Trujillo, Angel Ricardo Plastino
Cold Dark Matter (CDM) simulations predict a central cusp in the mass distribution of galaxies. This prediction is in stark contrast with observations of dwarf galaxies which show…
Emergent dynamics from entangled mixed states
A. Valdés-Hernández, C. G. Maglione, A. P. Majtey +1
Entanglement is at the core of quantum physics, playing a central role in quantum phenomena involving composite systems. According to the timeless picture of quantum dynamics, enta…
Thermodynamic Equilibrium in General Relativity
J. A. S. Lima, A. Del Popolo, A. R. Plastino
The thermodynamic equilibrium condition for a static self-gravitating fluid in the Einstein theory is defined by the Tolman-Ehrenfest temperature law, $T{\sqrt {g_{00}(x^{i})}} = c…
Optimizing configurations for determining the magnetic model based on ab-initio calculations
J. M. Matera, C. A. Lamas, L. A. Errico +2
In this paper, it is presented a novel strategy to optimize the determination of magnetic couplings by using ab-initio calculations of the energy. This approach allows determining…
Reciprocity relations and generalized entropic quantifiers that lack trace-form
A. Plastino, A. R. Plastino, M. C. Rocca
In this effort we show that the Legendre reciprocity relations,thermodynamic's essential formal feature, are respected by any entropic functional, even if it is NOT of trace-form n…
Features of constrained entropic functional variational problems
A. R. Plastino, A. Plastino, M. C. Rocca
We describe in great generality features concerning constrained entropic, functional variational problems that allow for a broad range of applications. Our discussion encompasses n…
Curl Forces and the Nonlinear Fokker-Planck Equation
R. S. Wedemann, A. R. Plastino, C. Tsallis
Nonlinear Fokker-Planck equations endowed with curl drift forces are investigated. The conditions under which these evolution equations admit stationary solutions, which are -ex…
Entanglement generation through particle detection in systems of identical fermions
P. A. Bouvrie, A. Valdés-Hernández, A. P. Majtey +2
We investigate the generation of entanglement in systems of identical fermions through a process involving particle detection, focusing on the implications that this kind of proces…
Generalized Nonlinear Proca Equation and its Free-Particle Solutions
F. D. Nobre, A. R. Plastino
We introduce a non-linear extension of Proca's field theory for massive vector (spin ) bosons. The associated relativistic nonlinear wave equation is related to recently advance…
Multipartite concurrence for identical-fermion systems
A. P. Majtey, P. A. Bouvrie, A. Valdés-Hernández +1
We study the problem of detecting multipartite entanglement among indistinguishable fermionic particles. A multipartite concurrence for pure states of identical fermions, each…
Quantum Entanglement in -Spherium
I. V. Toranzo, A. R. Plastino, P. Sánchez-Moreno +1
There are very few systems of interacting particles (with continuous variables) for which the entanglement of the concomitant eigenfunctions can be computed in an exact, analytical…
Dissipative Effects in Nonlinear Klein-Gordon Dynamics
A. R. Plastino, C. Tsallis
We consider dissipation in a recently proposed nonlinear Klein-Gordon dynamics that admits soliton-like solutions of the power-law form , involving the -exponent…
Quantum state space-dimension as a quantum resource
Angelo Plastino, Guido Bellomo, Angel R. Plastino
We argue that the dimensionality of the space of quantum systems' states should be considered as a legitimate resource for quantum information tasks. The assertion is supported by…
On a conjecture regarding Fisher information
Angelo Plastino, Guido Bellomo, Angel R. Plastino
Fisher's information measure plays a very important role in diverse areas of theoretical physics. The associated measures as functionals of quantum probability distributions define…
Quantum correlations from classically correlated states
Guido Bellomo, Ana P. Majtey, A. R. Plastino +1
Consider a bipartite quantum system with at least one of its two components being itself a composite system. By tracing over part of one (or both) of these two subsystems it is pos…
Classical extension of quantum-correlated separable states
Guido Bellomo, Angelo Plastino, Angel R. Plastino
Li and Luo [Phys. Rev. A 78 (2008), 024303] discovered a remarkable relation between discord and entanglement. It establishes that all separable states can be obtained via reductio…
Comment on "Quantum discord through the generalized entropy in bipartite quantum states"
Guido Bellomo, Angelo Plastino, Anna P. Majtey +1
In [X.-W. Hou, Z.-P. Huang, S. Chen, Eur. Phys. J. D 68, 1 (2014)], Hou et al. present, using Tsallis' entropy, possible generalizations of the quantum discord measure, finding ori…