Buscar recursos académicos

Materias / palabras clave: Physics; Theoretical physics

Materias / palabras clave: Mechanics; Calculus (dental); Classical mechanics; Computer science; Physics; Medicine; Dentistry

"En esta tesis, se estudia el uso de iniciadores multifuncionales para la polimerización en masa de estireno. El objetivo general es desarrollar modelos matemáticos detallados, y a la vez genéricos, que permitan descr...

Materias / palabras clave: Master equation; Stochastic differential equation; Statistical physics; Quantum stochastic calculus; Stochastic process; Fokker–Planck equation; Langevin equation; Mathematical physics; Markov process; Mathematics; Mar...

Recently, it has been proposed by Maldacena that large N limits of certain conformal field theories in d dimensions can be described in terms of supergravity (and string theory) on the product of d 4-1dimensional AdS spa...

Proudly serving the scientific community for over a century, this 97th edition of the CRC Handbook of Chemistry and Physics is an update of a classic reference, mirroring the growth and direction of science. This venerab...

We show that the large N limit of certain conformal field theories in various dimensions include in their Hilbert space a sector describing supergravity on the product of Anti-deSitter spacetimes, spheres and other compa...

Materias / palabras clave: Communication theory; Computer science; Physics; Theoretical physics; Mathematics; Statistics

First Page

We propose a simple analytic representation of the correlation energy ${\mathrm{\ensuremath{\varepsilon}}}_{\mathit{c}}$ for a uniform electron gas, as a function of density parameter ${\mathit{r}}_{\mathit{s}}$ and rela...

Nos\'e has modified Newtonian dynamics so as to reproduce both the canonical and the isothermal-isobaric probability densities in the phase space of an N-body system. He did this by scaling time (with s) and distance (wi...

A density-functional formalism comparable to the Hohenberg-Kohn-Sham theory of the ground state is developed for arbitrary time-dependent systems. It is proven that the single-particle potential $v(\stackrel{\ensuremath{...

Materias / palabras clave: Physics; String field theory; Non-critical string theory; Relationship between string theory and quantum field theory; Heterotic string theory; Supergravity; String (physics); String theory; String duality; Mathematical ...

For the molecules Be 2 , F 2 , and P 2 of Table For these broken-symmetry solutions, the UHF atomization energies become 17, 220, and 141 kcalmol, respectively, and the mean absolute error of all the UHF atomization ener...

An unknown quantum state \ensuremath{\Vert}\ensuremath{\varphi}〉 can be disassembled into, then later reconstructed from, purely classical information and purely nonclassical Einstein-Podolsky-Rosen (EPR) correlations....

Materias / palabras clave: Massless particle; Dirac fermion; Graphene; Fermion; Physics; Dirac (video compression format); Mathematical physics; Quantum mechanics; Neutrino

Materias / palabras clave: Physics; Event horizon; Black hole (networking); Black hole thermodynamics; Gravitation; Entropy (arrow of time); Baryon; Micro black hole; Quantum mechanics; Event (particle physics); Particle physics; Computer network

A number of extensions to the multisolution approach to the crystallographic phase problem are discussed in which the negative quartet relations play an important role. A phase annealing method, related to the simulated ...

Abstract This paper discusses the applicability of statistics to a wide field of problems. Examples of simple and complex distributions are given.

This paper uses an intertemporal general equilibrium asset pricing model to study the term structure of interest rates. In this model, anticipations, risk aversion, investment alternatives, and preferences about the timi...

Anomaly detection is an important problem that has been researched within diverse research areas and application domains. Many anomaly detection techniques have been specifically developed for certain application domains...

Materias / palabras clave: Attractor; Turbulence; Mathematics; Statistical physics; Mathematical analysis; Physics; Meteorology

The dispersion and absorption of a considerable number of liquid and dielectrics are represented by the empirical formula ε*−ε∞=(ε0−ε∞)/[1+(iωτ0)1−α]. In this equation, ε* is the complex dielectric cons...

We present an efficient scheme for calculating the Kohn-Sham ground state of metallic systems using pseudopotentials and a plane-wave basis set. In the first part the application of Pulay's DIIS method (direct inversion ...