Multiple Scattering Theory for Space Filling Potentials
نویسندگان
چکیده
منابع مشابه
Full-potential multiple scattering theory with space-filling cells for bound and continuum states.
We present a rigorous derivation of a real-space full-potential multiple scattering theory (FP-MST) that is free from the drawbacks that up to now have impaired its development (in particular the need to expand cell shape functions in spherical harmonics and rectangular matrices), valid both for continuum and bound states, under conditions for space partitioning that are not excessively restric...
متن کاملMultiple scattering theory for non-local and multichannel potentials.
Methodological advances in multiple scattering theory (MST) in both wave and Green's function versions are reported for the calculation of electronic ground and excited state properties of condensed matter systems with an emphasis on core-level photoemission and absorption spectra. Full-potential MST is reviewed and extended to non-local potentials. Multichannel MST is reformulated in terms of ...
متن کاملScattering theory for arbitrary potentials
The fundamental quantities of potential scattering theory are generalized to accommodate longrange interactions. New definitions for the scattering amplitude and wave operators valid for arbitrary interactions including potentials with a Coulomb tail are presented. It is shown that for the Coulomb potential the generalized amplitude gives the physical on-shell amplitude without recourse to a re...
متن کاملScattering theory using smeared non-Hermitian potentials
Complex, non-Hermitian potentials V (x) 6= V (x) can often generate the standard, normalizable bound states ψ(x). Unfortunately, the idea [based on the use of a nonlocal ad hoc metric Θ(x, x) 6= δ(x − x) in Hilbert space] cannot directly be transferred to scattering [cf. H. F. Jones, Phys. Rev. D 78, 065032 (2008)]. We complement and modify this result by showing that a return to the causal and...
متن کاملGeometric Scattering Theory for Long-range Potentials and Metrics
LetX be a compact manifold with boundary, n = dimX , and let x be a boundary defining function, i.e. x ∈ C(X), x ≥ 0, ∂X = {p ∈ X : x(p) = 0}, and dx is not zero at ∂X . We consider the following class of asymptotically flat, complete metrics onX which provide the background for a natural generalization of Euclidian scattering theory, first discussed by Melrose in [13]. A Riemannian metric g in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: MRS Proceedings
سال: 1990
ISSN: 0272-9172,1946-4274
DOI: 10.1557/proc-193-27