Browsing Artículos (Física Atómica, Molecular y Nuclear) by Title
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Kinetic equation and nonequilibrium entropy for a quasitwodimensional gas [Article]
(American Physical Society, 2016)A kinetic equation for a dilute gas of hard spheres confined between two parallel plates separated a distance smaller than two particle diameters is derived. It is a Boltzmannlike equation, which incorporates the effect ...

Kinetic Theory of a Confined QuasiTwoDimensional Gas of Hard Spheres [Article]
(MDPI, 201702)The dynamics of a system of hard spheres enclosed between two parallel plates separated a distance smaller than two particle diameters is described at the level of kinetic theory. The interest focuses on the behavior of ...

Kink ratchet induced by a timedependent symmetric field potential [Article]
(American Physical Society, 2016)The ratchet effect of a sineGordon kink is investigated in the absence of any external force while the symmetry of the field potential at every time instant is maintained. The directed motion appears by a time shift of ...

Kovacs effect in the onedimensional Ising model: A linear response analysis [Article]
(American Physical Society, 2014)We analyze the socalled Kovacs effect in the onedimensional Ising model with Glauber dynamics. We consider small enough temperature jumps, for which a linear response theory has been recently derived. Within this theory, ...

Kovacslike memory effect in athermal systems: Linear response analysis [Article]
(Multidisciplinary Digital Publishing Institute (MDPI), 2017)We analyze the emergence of Kovacslike memory effects in athermal systems within the linear response regime. This is done by starting from both the master equation for the probability distribution and the equations for ...

KovacsLike Memory Effect in Driven Granular Gases [Article]
(American Physical Society, 20140514)While memory effects have been reported for dense enough disordered systems such as glasses, we show here by a combination of analytical and simulation techniques that they are also intrinsic to the dynamics of dilute ...

LabVIEWbased control and acquisition system for the dosimetric characterization of a silicon strip detector [Article]
(AIP Publishing, 2017)Theaimofthisworkistopresentanewdataacquisition,control,andanalysissoftwaresystemwrittenin LabVIEW.Thissystemhasbeendesignedtoobtainthedosimetryofasiliconstripdetectorinpolyethylene. It allows the full automation of the ...

Large fluctuations in driven dissipative media [Article]
(American Physical Society, 20110930)We analyze the fluctuations of the dissipated energy in a simple and general model where dissipation, diffusion, and driving are the key ingredients. The full dissipation distribution, which follows from hydrodynamic ...

Large Mpembalike effect in a gas of inelastic rough hard spheres [Article]
(American Physical Society, 2019)We report the emergence of a giant Mpemba effect in the uniformly heated gas of inelastic rough hard spheres: The initially hotter sample may cool sooner than the colder one, even when the initial temperatures differ by ...

Level densities of transitional Sm nuclei [Article]
(American Physical Society, 20050601)Experimentally determined level densities of the transitional isotopes 148, 149, 150, 152Sm at excitation energies below and around the neutron binding energy are compared with microcanonical calculations based on a Monte ...

Linear hydrodynamics for driven granular gases [Article]
(American Physical Society, 2013)We study the dynamics of a granular gas heated by a stochastic thermostat. From a Boltzmann description, we derive the hydrodynamic equations for small perturbations around the stationary state that is reached in the long ...

Linear response of vibrated granular systems to sudden changes in the vibration intensity [Article]
(American Physical Society, 2001)The shortterm memory effects recently observed in vibrationinduced compaction of granular materials are studied. It is shown that they can be explained by means of quite plausible hypothesis about the mesoscopic description ...

Linking structure and dynamics in (p,pn) reactions with Borromean nuclei: The 11Li(p,pn)10Li case [Article]
(Elsevier, 20170910)Oneneutron removal (p,pn) reactions induced by twoneutron Borromean nuclei are studied within a TransfertotheContinuum (TC) reaction framework, which incorporates the threebody character of the incident nucleus. The ...

Liquid crystal behavior of the Kihara fluid [Article]
(American Physical Society, 2003)The liquid crystal phases of the Kihara fluid have been studied in computer simulations. The work focuses on the isotropic–nematic–smecticA triple point region, especially relevant for the understanding of the properties and ...

Liquidgas separation in colloidal electrolytes [Article]
(American Institute of Physics Publising LLC, 2006)The liquidgas transition of an electroneutral mixture of oppositely charged colloids, studied by Monte Carlo simulations, is found in the lowtemperature–lowdensity region. The critical temperature shows a nonmonotonous ...

Local icosahedral structures in binaryalloy clusters from moleculardynamics simulation [Article]
(American Physical Society, 1996)We investigate the structure of 13particle clusters in binary alloys for various size ratios and different concentrations via moleculardynamics simulation. Our goal is to predict which systems are likely to form local ...

Location of the FisherWidom line for systems interacting through shortranged potentials [Article]
(Physical Review E, 1995)For finiteranged potentials the behavior of the total correlation function h (r) at large distances can be of two different types. In threedimensional systems at low densities the function r h (r) presents exponential decay ...

Long range absorption in the scattering of 6 He on 208 Pb and 197 Au at 27 MeV [Article]
(Elsevier, 2005)Quasielastic scattering of 6He at E_lab=27 MeV from 197Au has been measured in the angular range of 672 degrees in the laboratory system employing LEDA and LAMP detection systems. These data, along with previously analysed ...

Longitudinal and transverse scaling functions within the coherent density fluctuation model [Article]
(The American Physical Society, 2009)We extend our previous description of the superscaling phenomenon in inclusive electron scattering within the coherent density fluctuation model (CDFM). This model is a natural extension to finite nuclei of the relativistic ...

Lowlying states in 8B [Article]
(The American Physical Society, 2010)Excitation functions of elastic and inelastic 7Be + p scattering were measured in the energy range between 1.6 and 2.8 MeV in the c.m. An Rmatrix analysis of the excitation functions provides strong evidence for new ...