1.4k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universidad Nacional Autónoma de MéxicoMX165 papers
- Fermi National Accelerator LaboratoryUS154 papers
- Centre National de la Recherche ScientifiqueFR114 papers
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalMX106 papers
- University of PittsburghUS102 papers
- Centro Brasileiro de Pesquisas FísicasBR97 papers
- University of RochesterUS89 papers
- University of MichiganUS84 papers
- University College LondonGB75 papers
- Instituto Politécnico NacionalMX72 papers
- University of FloridaUS69 papers
- University of MilanIT69 papers
26 papers · 1 filter
Towards a Gravitational Analog to S-duality in Non-abelian Gauge Theories
H. Garcia-Compean, O. Obregon, J. F. Plebanski +1
For non-abelian non-supersymmetric gauge theories, generic dual theories have been constructed. In these theories the couplings appear inverted. However, they do not possess a Yang…
Central charges in regular mechanics
A. Cabo, J. L. Lucio M., V. Villanueva
We consider the algebra associated to a group of transformations which are symmetries of a regular mechanical system (i.e. system free of constraints). For time dependent coordinat…
Tidal dwarf galaxies
Pierre-Alain Duc, Felix Mirabel
We review the observational evidences for tidal dwarf galaxies, a class of small galaxies formed out of the tidal debris of collisions between massive galaxies. Tidal dwarfs are fo…
Large-Scale Structures Behind the Milky Way from Near-IR Surveys
R. C. Kraan-Korteweg, A. Schroeder, G. A. Mamon +1
About 25% of the optical extragalactic sky is obscured by the dust and stars of our Milky Way. Dynamically important structures might still lie hidden in this zone. Various approac…
On the "circular vacuum noise" in electron storage rings
H. C. Rosu
We discuss the proposal of Bell and Leinaas (BL) to measure the circular Unruh effect in storage rings. The ideal concept `circular Unruh effect' has a more realistic correspondent…
Colliding waves in metric-affine gravity
Alberto García, Claus Lämmerzahl, Alfredo Macías +2
We generalize the formulation of the colliding gravitational waves to metric-affine theories and present an example of such kind of exact solutions. The plane waves are equipped wi…
Galaxies Discovered Behind the Milky Way by the Dwingeloo Obscured Galaxies Survey
P. A. Henning, R. C. Kraan-Korteweg, A. J. Rivers +3
Our Galaxy blocks a significant portion of the extragalactic sky from view, hampering studies of large-scale structure. This produces an incomplete knowledge of the distribution of…
Black holes and radiometry
H. C. Rosu
Following Grischuk and Sidorov [Phys. Rev. D 42 (1990) 3413] in putting the Bogolubov-Hawking coefficient of Schwarzschild black-holes in the squeezing perspective, we provide a sh…
Squeezed States and Helmholtz Spectra
Francisco Delgado C., Bogdan Mielnik, Marco A. Reyes
The 'classical interpretation' of the wave function psi(x) reveals an interesting operational aspect of the Helmholtz spectra. It is shown that the traditional Sturm-Liouville prob…
Supersymmetric one-parameter strict isospectrality for the attractive delta potentials
L. J. Boya, H. C. Rosu, A. J. Segui-Santonja +2
The Schrödinger equation with attractive delta potential has been previously studied in the supersymmetric quantum mechanical approach by a number of authors, but they all used onl…
Galaxy Candidates in the Zone of Avoidance
O. Lahav, N. Brosch, E. Goldberg +3
Motivated by recent discoveries of nearby galaxies in the Zone of Avoidance, we conducted a pilot study of galaxy candidates at low Galactic latitude, near Galactic longitude $l \s…
Riccati parameter modes from Newtonian free damping motion by supersymmetry
H. C. Rosu, M. A. Reyes
We determine the class of damped modes \tilde{y} which are related to the common free damping modes y by supersymmetry. They are obtained by employing the factorization of Newton's…
Supersymmetric partner chirping of Newtonian free damping
H. C. Rosu, J. L. Romero, J. Socorro
We connect the classical free damping cases by means of Rosner's construction in supersymmetric quantum mechanics. Starting with the critical damping, one can obtain in the underda…
Supersymmetric quantum cosmology for Bianchi class A models
Alfredo Macías, Eckehard W. Mielke, José Socorro
The canonical theory of (N=1) supergravity, with a matrix representation for the gravitino covector-spinor, is applied to the Bianchi class A spatially homogeneous cosmologies. The…
BRST Algebra Quantum Double and Quantization of the Proper Time Cotangent Bundle
V. D. Lyakhovsky, V. I. Tkach
The quantum double for the quantized BRST superalgebra is studied. The corresponding R-matrix is explicitly constucted. The Hopf algebras of the double form an analytical variety w…
Darboux parameter for empty FRW quantum universes and quantum cosmological singularities
H. C. Rosu
I present the factorization(s) of the Wheeler-DeWitt equation for vacuum FRW minisuperspace universes of arbitrary Hartle-Hawking factor ordering, including the so-called strictly…
About Black Holes Without Trapping Interior
Alejandro Cabo, Eloy Ayon
Physical arguments related with the existence of black hole solutions having a non trapping interior are discussed. Massive scalar fields interacting with gravity are considered. I…
Searching (the) FIRST radio arcs near ACO clusters
H. Andernach, A. G. Gubanov, O. B. Slee
Gravitational lensing (GL) of distant radio sources by galaxy clusters should produce radio arc(let)s. We extracted radio sources from the FIRST survey near Abell cluster cores and…
The supercluster--void network II. An oscillating cluster correlation function
J. Einasto, M. Einasto, P. Frisch +7
We use rich clusters of galaxies in the Northern and Southern Galactic hemispheres up to a redshift z=0.12 to determine the cluster correlation function. We show that superclusters…
Radio-optical orientation of E/S0 galaxies: APM versus FIRST
E. Stengler-Larrea, H. Andernach
We searched for extended radio sources in isolated E/S0 galaxies comparing the FIRST and APM catalogues for a single POSS plate. The 35 most promising candidates were visually insp…
Radio Spectra and NVSS Maps of Decametric Sources
O. Verkhodanov, H. Andernach, N. Verkhodanova +1
We constructed radio spectra for ~1400 UTR-2 sources and find that 46% of them have concave curvature. Inspection of NVSS maps of 700 UTR sources suggests that half of all UTR sour…
Current Status of Radio Source Databases
H. Andernach, S. Trushkin
We review the history and present status of radio-source catalogue archiving and on-line retrieval of radio source data. Large efforts were spent by the first author in collecting…
Fisher's arrow of `time' in cosmological coherent phase space
B. Roy Frieden, H. C. Rosu
Fisher's arrow of `time' in a cosmological phase space defined as in quantum optics (i.e., whose points are coherent states) is introduced as follows. Assuming that the phase space…
On Scale Invariance and Anomalies in Quantum Mechanics
A. Cabo, J. L. Lucio, H. Mercado
We re-consider the quantum mechanics of scale invariant potentials in two dimensions. The breaking of scale invariance by quantum effects is analyzed by the explicit evaluation of…