Results 21 to 30 of about 11,559,793 (316)

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

open access: yesPhysical Review Research, 2019
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, I. Kurata, Yuya O. Nakagawa
semanticscholar   +1 more source

ON GREEN’S FUNCTION OF DARBOUX PROBLEM FOR HYPERBOLIC EQUATION

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2021
It is well known that the Darboux problem for the hyperbolic equation is correct, both in the senseof classical and generalized solutions. An integral form of the solution of the Darboux problem ina characteristic triangle for a general two-dimensional ...
M. A. Sadybekov, B. Derbissaly
doaj   +1 more source

First-principles Green's-function method for surface calculations: A pseudopotential localized basis set approach [PDF]

open access: yes, 2017
We present an efficient implementation of a surface Green's-function method for atomistic modeling of surfaces within the framework of density functional theory using a pseudopotential localized basis set approach. In this method, the system is described
S. Smidstrup   +9 more
semanticscholar   +1 more source

Analyticity and crossing symmetry of superstring loop amplitudes

open access: yesJournal of High Energy Physics, 2019
Bros, Epstein and Glaser proved crossing symmetry of the S-matrix of a theory without massless fields by using certain analyticity properties of the off-shell momentum space Green’s function in the complex momentum plane.
Corinne de Lacroix   +2 more
doaj   +1 more source

NEW METHOD FOR CALCULATING THE ONE-PARTICLE GREEN'S FUNCTION WITH APPLICATION TO THE ELECTRON-GAS PROBLEM

open access: yes, 1965
A set of successively more accurate self-consistent equations for the one-electron Green's function have been derived. They correspond to an expansion in a screened potential rather than the bare Coulomb potential. The first equation is adequate for many
L. Hedin
semanticscholar   +1 more source

Retrieving the elastodynamic Green's function of an arbitrary inhomogeneous medium by cross correlation.

open access: yesPhysical Review Letters, 2004
A correlation-type reciprocity theorem is used to show that the elastodynamic Green's function of any inhomogeneous medium (random or deterministic) can be retrieved from the cross correlation of two recordings of a wave field at different receiver ...
K. Wapenaar
semanticscholar   +1 more source

Coupled Cluster as an impurity solver for Green's function embedding methods. [PDF]

open access: yesJournal of Chemical Theory and Computation, 2019
We investigate the performance of Green's function coupled cluster singles and doubles (CCSD) method as a solver for Green's function embedding methods.
Avijit Shee, D. Zgid
semanticscholar   +1 more source

Exact analytic relation between quantum defects and scattering phases with applications to Green's functions in quantum defect theory

open access: yesThe European Physical Journal D - Atomic, Molecular and Optical Physics, 2000
The relation between the quantum defects, µ λ , and scattering phases, δ λ , in the single-channel Quantum Defect Theory (QDT) is discussed with an emphasis on their analyticity properties for both integer and noninteger values of the orbital angular momentum parameter ...
Chernov, V. E.   +2 more
openaire   +3 more sources

Landau quantized dynamics and spectra for group-VI dichalcogenides, including a model quantum wire

open access: yesAIP Advances, 2017
This work is concerned with the derivation of the Green’s function for Landau-quantized carriers in the Group-VI dichalcogenides. In the spatially homogeneous case, the Green’s function is separated into a Peierls phase factor and a translationally ...
Norman J. M. Horing
doaj   +1 more source

MATRIX GREEN’S FUNCTION OF DOUBLE-DIFFUSIVITY PROBLEM AND ITS APPLICATIONS TO PROBLEMS WITH INNER POINT SOURCE

open access: yesTASK Quarterly, 2019
The matrix Green’s function of the initial-boundary value problem of admixture double-diffusivity is defined. The initial-boundary value problem with a point source is formulated for the matrix elements for determination of the matrix Green’s function ...
YEVHEN CHAPLYA   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy