Results 11 to 20 of about 57,747 (318)

Calculation of the Green's function on near-term quantum computers

open access: yesPhysical Review Research, 2020
The Green's function plays a crucial role when studying the nature of quantum many-body systems, especially strongly correlated systems. Although the development of quantum computers in the near future may enable us to compute energy spectra of ...
Suguru Endo   +2 more
doaj   +1 more source

Numerically Stable form of Green’s Function for a Free-Free Uniform Timoshenko Beam

open access: yesMathematics, 2022
Beam models are widely applied in civil engineering, transport, and industry because the beams are basic structural elements. When dealing with the high-order modes of beam in the context of applying the modal analysis method, the numerical instability ...
Traian Mazilu
doaj   +1 more source

Constant-Sign Green’s Function of a Second-Order Perturbed Periodic Problem

open access: yesAxioms, 2022
In this paper, we were interested in obtaining the exact expression and studying the regions of constant sign of Green’s function related to a second-order perturbed periodic problem coupled with integral boundary conditions at the extremes of the ...
Alberto Cabada   +2 more
doaj   +1 more source

Computation of Green's function by local variational quantum compilation

open access: yesPhysical Review Research, 2023
Computation of the Green's function is crucial to study the properties of quantum many-body systems such as strongly correlated systems. Although the high-precision calculation of the Green's function is a notoriously challenging task on classical ...
Shota Kanasugi   +5 more
doaj   +1 more source

Phonon Green's function. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1991
The concepts of source and quantum action principle are used to produce the phonon Green's function appropriate for an initial phonon vacuum state. An application to the Mossbauer effect is presented.
openaire   +2 more sources

Calculating the Green’s function of two-site fermionic Hubbard model in a photonic system

open access: yesNew Journal of Physics, 2022
The Green’s function has been an indispensable tool to study many-body systems that remain one of the biggest challenges in modern quantum physics for decades. The complicated calculation of the Green’s function impedes the research of many-body systems.
Jie Zhu   +4 more
doaj   +1 more source

Discrete Green's Functions

open access: yesJournal of Combinatorial Theory, Series A, 2000
The authors study discrete Green's functions and their relationship with discrete Laplace equations. They give different ways to construct such functions: Eigenfunctions or Cartesian product of graphs, among others.
Chung, Fan, Yau, S.-T.
openaire   +1 more source

Proper incorporation of self-adjoint extension method to Green's function formalism : one-dimensional $\delta^{'}$-function potential case [PDF]

open access: yes, 1995
One-dimensional $\delta^{'}$-function potential is discussed in the framework of Green's function formalism without invoking perturbation expansion.
Albeverio S   +12 more
core   +2 more sources

Maximal and minimal iterative positive solutions for singular infinite-point p-Laplacian fractional differential equations

open access: yesNonlinear Analysis, 2019
The existence of maximal and minimal positive solutions for singular infinite-point p-Laplacian fractional differential equation is investigated in this paper. Green's function is derived, and some properties of Green's function are obtained.
Limin Guo, Lishan Liu
doaj   +1 more source

Compact expression of dyadic Green's function for homogeneous dielectric half‐space and its efficient double integral representation

open access: yesIET Microwaves, Antennas & Propagation, 2022
The dyadic Green's function can be represented via spatial derivatives of two Sommerfeld integrals when an infinitesimal electric dipole and an observation point are located above an infinite planar dielectric interface.
Il‐Suek Koh
doaj   +1 more source

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