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The explicit semiclassical treatment of the logarithmic perturbation theory for the bound-state problem of the radial Shrodinger equation with the screened Coulomb potential is developed. Based upon h-expansions and new quantization…

量子物理 · 物理学 2007-05-23 I. V. Dobrovolska , R. S. Tutik

We introduce a numerical method for the solution of the time-dependent Schrodinger equation with a smooth potential, based on its reformulation as a Volterra integral equation. We present versions of the method both for periodic boundary…

数值分析 · 数学 2021-08-03 Jason Kaye , Alex Barnett , Leslie Greengard

Nonperturbative dynamic theory has a particular advantage in studying the transport in a quantum impurity system in a steady state. Here, we develop a new approach for obtaining the retarded Green's function expressed in resolvent form. We…

介观与纳米尺度物理 · 物理学 2009-11-30 Jongbae Hong

We develop a new envelope-function formalism to describe electrons in slowly-varying inhomogeneously strained semiconductor crystals. A coordinate transformation is used to map a deformed crystal back to geometrically undeformed structure…

材料科学 · 物理学 2014-10-29 Wenbin Li , Xiaofeng Qian , Ju Li

An ensemble Green's function formalism, based on the von Neumann density matrix approach, to calculate one-electron excitation spectra of a many-electron system with degenerate ground states is proposed. A set of iterative equations for the…

强关联电子 · 物理学 2019-12-24 Erik Linnér , Ferdi Aryasetiawan

We present a quantum-classical hybrid implementation of the Liouvillian recursion method to compute many-body Green's functions using a quantum computer. From an approximate ground state preparation circuit, this algorithm produces the…

We discuss Staruszkiewicz's nonlinear modification of the Schr\"{o}dinger equation. It is pointed out that the expression for the energy functional for this modification is not unique as the field-theoretical definition of energy does not…

量子物理 · 物理学 2007-05-23 Waldemar Puszkarz

We investigate recovery of the (Schr\"odinger) potential function from many boundary measurements at a large wavenumber. By considering such a linearized form, we obtain a H\"older type stability which is a big improvement over a…

偏微分方程分析 · 数学 2020-08-19 Victor Isakov , Shuai Lu , Boxi Xu

It is shown that a class of approximate resonance solutions in the three-body problem under the Newtonian gravitational force are equivalent to quantized solutions of a modified Schr\"odinger equation for a wide range of masses that…

综合物理 · 物理学 2020-02-12 Edward Belbruno

We present a new approach to real-space multiple-scattering theory for molecules and clusters, based on the two-potential (distorted-wave) Lippmann-Schwinger equation formalism. Our approach uses a recently developed form [D. L. Foulis,…

数学物理 · 物理学 2008-06-04 D. L. Foulis

We obtained a new solution of Schrodinger equation by the method of Euclidean approach (Wick rotation). This is a wave motion which is fluctuating.

量子物理 · 物理学 2008-04-29 Yoshio Kishi , SeiIchiro Umehara

Using perturbative methods, we analyse a nonlinear generalisation of Schrodinger's equation that had previously been obtained through information-theoretic arguments. We obtain analytical expressions for the leading correction, in terms of…

量子物理 · 物理学 2008-11-26 R. Parwani , G. Tabia

This paper addresses the problem of computing the eigenvalues lying in the gaps of the essential spectrum of a periodic Schrodinger operator perturbed by a fast decreasing potential. We use a recently developed technique, the so called…

谱理论 · 数学 2009-11-13 Lyonell Boulton , Michael Levitin

In a recent paper, it has been shown the Schr\"{o}dinger equation for the three-dimensional harmonic oscillator can be simplified through the use of an isometric conformal transformation. Here, it is demonstrated that the same…

量子物理 · 物理学 2010-03-16 Robert J. Ducharme

The magnon Hedin's equations are derived via the Schwinger functional derivative technique, and the resulting self-consistent Green's function method is used to calculate ground state spin patterns and magnetic structure factors for…

强关联电子 · 物理学 2022-11-30 Zhen Zhao , Claudio Verdozzi , Ferdi Aryasetiawan

We consider a general 1D matrix Schr\"odinger equation within a transfer matrix approach. For a quadratic kinetic term we discuss expressions for the local Green function in terms of solutions of equations of the Riccati type, and an…

介观与纳米尺度物理 · 物理学 2019-04-05 P. Virtanen

Superoscillating functions and supershifts appear naturally in weak measurements in physics. Their evolution as initial conditions in the time dependent Schr\"odinger equation is an important and challenging problem in quantum mechanics and…

偏微分方程分析 · 数学 2021-02-24 Yakir Aharonov , Jussi Behrndt , Fabrizio Colombo , Peter Schlosser

We propose a new analytical method to solve for the nonexactly solvable Schrodinger equation. Successfully, it is applied to a class of spiked harmonic oscillators and truncated Coulomb potentials. The utility of this method could be…

数学物理 · 物理学 2009-10-31 Omar Mustafa , Maen Odeh

We establish a variational formula for the exponential decay rate of the Green function of Brownian motion evolving in a random stationary and ergodic nonnegative potential. Such a variational formula is established by Schroeder in 'Green's…

概率论 · 数学 2015-01-20 Johannes Rueß

The one dimensional wave equation serves as a basic model for imaging modalities such as seismic which utilize acoustic data reflected back from a layered medium. In 1955 Peterson et al. described a single scattering approximation for the…

偏微分方程分析 · 数学 2018-02-02 Peter C. Gibson