830 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of Puerto Rico SystemPR61 papers
- Arcetri Astrophysical ObservatoryIT31 papers
- University of TorontoCA28 papers
- University of PennsylvaniaUS27 papers
- University of British ColumbiaCA26 papers
- Brown UniversityUS25 papers
- Cardiff UniversityGB25 papers
- University of MiamiUS25 papers
- California Institute of TechnologyUS24 papers
- Jet Propulsion LaboratoryUS24 papers
- National Institute of Astrophysics, Optics and ElectronicsMX23 papers
- Laboratoire AstroParticule et CosmologieFR22 papers
181 papers
Relativistic spin precession in homogeneous background fields
Yunhua Ding, Alan Kostelecky, Arnaldo J. Vargas
The Bargmann-Michel-Telegdi equation, which describes the precession of the spin of a charged Dirac particle moving in a homogeneous electromagnetic field, is generalized to includ…
Optimizing Image Capture for Computer Vision-Powered Taxonomic Identification and Trait Recognition of Biodiversity Specimens
Alyson East, Elizabeth G. Campolongo, Luke Meyers +25
1) Biological collections house millions of specimens with digital images increasingly available through open-access platforms. However, most imaging protocols were developed for h…
Prospects for testing CPT and Lorentz symmetry with deuterium ground-state Zeeman-hyperfine transitions
Arnaldo J. Vargas
This work presents a model for testing Lorentz and CPT symmetry through sidereal-variation studies of the hyperfine-Zeeman deuterium ground-state transition frequencies. It represe…
Kinetic theory formulation of the - and -odd terms in the photon self-energy in a medium
José F. Nieves, John D. Verges
In an optically active medium, such as a plasma that contains a neutrino background, the left-handed and right-handed polarization photon modes acquire different dispersion relatio…
A Bayesian Projection of the Total Fertility Rate of Puerto Rico: 2020-2050
Angélica Rosario Santos, Luis Pericchi Guerra, Hernando Mattei
The abrupt decline in the Total Fertility Rate (TFR) of Puerto Rico since 2000 makes the prospect of a sustained population decline a real possibility. From 2000 to 2021 the TFR de…
On a new Gram determinant from the Möbius band
Dionne Ibarra, Gabriel Montoya-Vega
Gram determinants earned traction among knot theorists after E. Witten's presumption about the existence of a 3-manifold invariant connected to the Jones polynomial. Triggered by t…
Model for the propagation of fermions in a Bose-Einstein condensate
José F. Nieves, Sarira Sahu
We consider the dispersion relations of fermions that propagate in the background of a scalar Bose-Einstein condensate. Some illustrative examples are discussed using simple Yukawa…
The Generalized Kauffman-Harary Conjecture is True
Rhea Palak Bakshi, Huizheng Guo, Gabriel Montoya-Vega +2
For a reduced alternating diagram of a knot with a prime determinant the Kauffman-Harary conjecture states that every non-trivial Fox -coloring of the knot assigns differen…
Neutrino effective potential and damping in a fermion and scalar background in the resonance region
Jose F. Nieves, Sarira Sahu
We consider the propagation of a neutrino or an antineutrino in a medium composed of fermions and scalars interacting via a Yukawa-type coupling of the form , for…
Taming the pinch singularities in the two-loop neutrino self-energy in a medium
José F. Nieves, Sarira Sahu
We consider the calculation of the thermal self-energy of a neutrino that propagates in a medium composed of fermions and scalars interacting via a Yukawa-type coupling, in the cas…
Approximate and mean approximate controllability properties for Hilfer time-fractional differential equations
Ernest Aragones, Valentin Keyantuo, Mahamadi Warma
We study the approximate and mean approximate controllability properties of fractional partial differential equations associated with the so-called Hilfer type time-fractional deri…
Neutrino decoherence in an electron and nucleon background
José F. Nieves, Sarira Sahu
We consider the decoherence effects in the propagation of active neutrinos due to the non-forward neutrino scattering processes in a matter background composed of electrons and nuc…
Radio Recombination Line Observations Toward the Massive Star Forming Region W51 IRS1
Mishaal. I. Jan, D. Anish Roshi, M. E. Lebrón +6
We observed radio recombination lines (RRLs) toward the W51 molecular cloud complex, one of the most active star forming regions in our Galaxy. The UV radiation from young massive…
Neutrino decoherence in a fermion and scalar background
Jose F. Nieves, Sarira Sahu
We consider the decoherence effects in the propagation of neutrinos in a background composed of a scalar particle and a fermion due to the non-forward neutrino scattering processes…
Integrating Undergraduate Research and Faculty Development in a Legacy Astronomy Research Project
Rebecca A. Koopmann, Thomas J. Balonek, John M. Cannon +14
The NSF-sponsored Undergraduate ALFALFA Team (UAT) promotes long-term collaborative research opportunities for faculty and students from 23 U.S. public and private primarily underg…
Where does active travel fit within local community narratives of mobility space and place?
Alec Biehl, Ying Chen, Karla Sanabria-Veaz +2
Encouraging sustainable mobility patterns is at the forefront of policymaking at all scales of governance as the collective consciousness surrounding climate change continues to ex…
First radial velocity results from the MINiature Exoplanet Radial Velocity Array (MINERVA)
Maurice L. Wilson, Jason D. Eastman, Matthew A. Cornachione +52
The MINiature Exoplanet Radial Velocity Array (MINERVA) is a dedicated observatory of four 0.7m robotic telescopes fiber-fed to a KiwiSpec spectrograph. The MINERVA mission is to d…
Neutrino damping in a fermion and scalar background
José F. Nieves, Sarira Sahu
We consider the propagation of a neutrino in a background composed of a scalar particle and a fermion using a simple model for the coupling of the form . In the pres…
External optimal control of nonlocal PDEs
Harbir Antil, Ratna Khatri, Mahamadi Warma
Very recently M. Warma has shown that for nonlocal PDEs associated with the fractional Laplacian, the classical notion of controllability from the boundary does not make sense and…
Analysis of the controllability from the exterior of strong damping nonlocal wave equations
Mahamadi Warma, Sebastian Zamorano
We make a complete analysis of the controllability properties from the exterior of the (possible) strong damping wave equation with the fractional Laplace operator subject to the n…
Prediction of Extraordinary Magnetoresistance in Janus Monolayer MoTeB2
Shijun Yuan, Hui Ding, Jinlan Wang +1
Based on first-principles calculations, we studied the geometric configuration, stability and electronic structure of the two-dimensional Janus MoTeB2. The MoTeB2 monolayer is semi…
Well-posedness results for a class of semi-linear super-diffusive equations
Edgardo Alvarez, Ciprian Gal, Valentin Keyantuo +1
In this paper we investigate the following fractional order in time Cauchy problem \begin{equation*} \begin{cases} \mathbb{D}_{t}^{α}u(t)+Au(t)=f(u(t)), & 1<α<2, u(0)=u_{0},\,\,\,u…
Neutrino effective potential in a fermion and scalar background
José F. Nieves, Sarira Sahu
We consider the neutrino self-energy in a background composed of a scalar particle and a fermion using a simple model for the coupling of the form . The results are…
Spindle Nodal Chain in Three-Dimensional alpha' Boron
Yan Gao, Yuee Xie, Yuanping Chen +2
Topological metal/semimetals (TMs) have emerged as a new frontier in the field of quantum materials. A few two-dimensional (2D) boron sheets have been suggested as Dirac materials,…