Browsing by Author "Asenjo, Felipe A."

Now showing items 1-10 of 10

    • A hydrodynamical model for relativistic spin quantum plasmas 
      Asenjo, Felipe A.; Muñoz Gálvez, Víctor; Valdivia Hepp, Juan; Mahajan, Swadesh M. (AMER INST PHYSICS, 2011-01)
      Based on the one-body particle-antiparticle Dirac theory of electrons, a set of relativistic quantum fluid equations for a spin half plasma is derived. The particle-antiparticle nature of the relativistic particles is ...
    • Bohm potential for the time dependent harmonic oscillator 
      Soto Eguibar, Francisco; Asenjo, Felipe A.; Hojman Guiñerman, Sergio; Moya Cessa, Héctor (Amer Inst Physics, 2021)
      In the Madelung-Bohm approach to quantum mechanics, we consider a time dependent phase that depends quadratically on position, and we show that it leads to a Bohm potential that corresponds to a time dependent harmonic ...
    • Comment on "Highly relativistic spin-gravity coupling for fermions" 
      Hojman Guiñerman, Sergio; Asenjo, Felipe A. (American Physical Society, 2016)
      We exhibit difficulties of different sorts which appear when using the Mathisson-Papapetrou equations, in particular in the description of highly relativistic particles presented in R. Plyatsko and M. Fenyk [Phys. Rev. D ...
    • Light-like propagation of self-interacting Klein-Gordon fields in cosmology 
      Asenjo, Felipe A.; Hojman Guinerman, Sergio Andrés (Springer, 2021)
      It is showed that complex scalar fields with a self-interaction potential may propagate along null geodesics on isotropic flat Friedmann-Lemaitre-Robertson-Walker universes with different time-dependent scale factors. This ...
    • Line Shapes in Infrared Absorption by Solids and by Atomic or Molecular Species Embedded in Solids 
      Lagos Infante, Miguel; Asenjo, Felipe A.; Hauyón, Roberto; Pastén, Denisse; Moya, Pablo S. (AMER CHEMICAL SOC, 2010-07-15)
      When the target is in the solid state, most infrared spectral features are manifestly asymmetric; hence, a line shape function well-grounded in theory is necessary to ascertain the net energy taken by the associated ...
    • Nondiffracting gravitational waves 
      Asenjo, Felipe A.; Hojman Guiñerman, Sergio (Springer, 2021)
      It is proved that accelerating nondiffracting gravitational Airy wave-packets are solutions of linearized gravity. It is also showed that Airy functions are exact solutions to Einstein equations for non-accelerating ...
    • Phenomenological dynamics of COVID-19 pandemic: Meta-analysis for adjustment parameters 
      Hojman Guiñerman, Sergio; Asenjo, Felipe A. (American Institute of Physics, 2020)
      We present a phenomenological procedure of dealing with the COVID-19 (coronavirus disease 2019) data provided by government health agencies of 11 different countries. Usually, the exact or approximate solutions of ...
    • Spinning massive test particles in cosmological and general static spherically symmetric spacetimes 
      Zalaquett, Nicolás; Hojman Guiñerman, Sergio; Asenjo, Felipe A. (IOP Publishing, 2014)
      A Lagrangian formalism is used to study the motion of a spinning massive particle in Friedmann–Robertson–Walker and G¨odel spacetimes, as well as in a general Schwarzschild-like spacetime and in static spherically ...
    • Supersymmetric Majorana quantum cosmologies 
      Hojman Guiñerman, Sergio; Asenjo, Felipe A. (American Physical Society, 2015)
      The Einstein equations for an isotropic and homogeneous Friedmann-Robertson-Walker universe in the presence of a quintessence scalar field are shown to be described in a compact way, formally identical to the dynamics of ...
    • Unification of massless field equations solutions for any spin 
      Hojman Guiñerman, Sergio; Asenjo, Felipe A. (IOP, 2022)
      A unification in terms of exact solutions for massless Klein-Gordon, Dirac, Maxwell, Rarita-Schwinger, Einstein, and bosonic and fermionic fields of any spin is presented. The method is based on writing all of the relevant ...