中文
相关论文

相关论文: The Fourier transform solution for the Green's fun…

200 篇论文

The analytical solution of neutron transport equation has fascinated mathematicians and physicists alike since the Milne half-space problem was introduce in 1921 [1]. Numerous numerical solutions exist, but understandably, there are only a…

计算物理 · 物理学 2020-07-07 Barry Ganapol

The linear Boltzmann equation with constant coefficients in the three-dimensional infinite space is revisited. It is known that the Green's function can be calculated via the Fourier transform in the case of isotropic scattering. In this…

数学物理 · 物理学 2016-04-20 Manabu Machida

A Green's function approach to the inclusive quasielastic ($e,e'$) scattering is presented. The components of the nuclear response are written in terms of the single-particle optical model Green's function. The explicit calculation of the…

核理论 · 物理学 2007-05-23 F. Capuzzi , C. Giusti , A. Meucci , F. D. Pacati

In non-classical linear transport the chord length distribution between collisions is non-exponential and attenuation does not respect Beer's law. Generalized radiative transfer (GRT) extends the classical theory to account for such…

统计力学 · 物理学 2020-02-19 Eugene d'Eon

We present a proof of an exact equivalence of the two approaches that are most used in computing conductance in quantum electron and phonon transport: the wave function matching and Green's functions methods. We can obtain all the…

介观与纳米尺度物理 · 物理学 2020-03-18 Hocine Boumrar , Mahdi Hamidi , Hand Zenia , Samir Lounis

A direct procedure for determining the propagator associated with a quantum mechanical problem was given by the Path Integration Procedure of Feynman. The Green function, which is the Fourier Transform with respect to the time variable of…

量子物理 · 物理学 2008-04-25 Marcos Moshinsky , Emerson Sadurni , Adolfo del Campo

The fundamental solution (Green function) for the Cauchy problem of the space-time fractional diffusion equation is investigated with respect to its scaling and similarity properties, starting from its Fourier-Laplace representation. Then,…

概率论 · 数学 2007-10-02 Francesco Mainardi

We investigate transport properties of gate-all-around Si nanowires using non-equilibrium Green's function technique. By taking into account of the ionized impurity scattering we calculate Green's functions self-consistently and examine the…

介观与纳米尺度物理 · 物理学 2009-11-13 J. H. OH , D. Ahn , Y. S. Yu , S. W. Hwang

A new expression for the Green's function of a finite one-dimensional lattice with nearest neighbor interaction is derived via discrete Fourier transform. Solution of the Heisenberg spin chain with periodic and open boundary conditions is…

数学物理 · 物理学 2015-05-13 S. Cojocaru

We generalize the representation of the real time Green's functions introduced by Langreth and Nordlander [Phys. Rev. B 43 2541 (1991)] and Meir and Wingreen [Phys. Rev. Lett. 68 2512 (1992)] in stationary quantum transport in order to…

介观与纳米尺度物理 · 物理学 2009-11-13 Liliana Arrachea

This review is devoted to the different techniques that have been developed to compute the phase-coherent transport properties of quantum nanoelectronic systems connected to electrodes. Beside a review of the different algorithms proposed…

Here, we are concerned with a new, highly precise, numerical solution to the 1D neutron transport equation based on Cases analytical singular eigenfunction expansion (SEE). While a considerable number numerical solutions currently exist,…

计算物理 · 物理学 2022-09-14 Barry Ganapol

Green's functions in Physics have proven to be a valuable tool for understanding fundamental concepts in different branches, such as electrodynamics, solid-state and many -body problems. In quantum mechanics advanced courses, Green's…

物理教育 · 物理学 2022-10-05 William J. Herrera , Herbert Vinck-Posada , Shirley Gomez Paez

A quantum transport model incorporating spin scattering processes is presented using the non-equilibrium Green's function (NEGF) formalism within the self-consistent Born approximation. This model offers a unified approach by capturing the…

介观与纳米尺度物理 · 物理学 2009-11-11 Ahmet Ali Yanik , Gerhard Klimeck , Supriyo Datta

A relativistic Green's function approach to inclusive quasielastic charged-current neutrino-nucleus scattering is developed. The components of the hadron tensor are written in terms of the single-particle Green's function, which is expanded…

核理论 · 物理学 2009-11-10 Andrea Meucci , Carlotta Giusti , Franco Davide Pacati

We develop a formalism for the evaluation of conduction eigenchannels of atomic-sized contacts from first-principles. The multiple scattering Korringa-Kohn-Rostoker (KKR) Green's function method is combined with the Kubo linear response…

材料科学 · 物理学 2011-11-09 Alexei Bagrets , Nikos Papanikolaou , Ingrid Mertig

Electrical transport in semiconductor superlattices is studied within a fully self-consistent quantum transport model based on nonequilibrium Green functions, including phonon and impurity scattering. We compute both the drift…

介观与纳米尺度物理 · 物理学 2009-10-31 A. Wacker , A. -P. Jauho , S. Rott , A. Markus , P. Binder , G. H. D"ohler

The properties of symmetric nuclear matter are investigated within the Green's functions approach. We have implemented an iterative procedure allowing for a self-consistent evaluation of the single-particle and two-particle propagators. The…

核理论 · 物理学 2009-11-10 T. Frick , H. Müther

The nonequilibrium Green's function (NEGF) method is often used to predict transport in atomistically resolved nanodevices and yields an immense numerical load when inelastic scattering on phonons is included. To ease this load, this work…

计算物理 · 物理学 2020-07-22 Daniel A. Lemus , James Charles , Tillmann Kubis

An eigenfunction expansion method involving hypergeometric functions is used to solve the partial differential equation governing the transport of radiation in an X-ray pulsar accretion column containing a radiative shock. The procedure…

数学物理 · 物理学 2009-11-11 Peter A. Becker
‹ 上一页 1 2 3 10 下一页 ›