scholarly journals Optics of Chromites and Charge-Transfer Transitions

2008 ◽  
Vol 2008 ◽  
pp. 1-4 ◽  
Author(s):  
Andrei V. Zenkov
Keyword(s):  
Charge Transfer ◽  
Simple Structure ◽  
Electric Dipole Transition ◽  
Wave Functions ◽  
Final States ◽  
Matrix Elements ◽  
Cluster Approach ◽  
Electron Wave ◽  
Charge Transfer Transitions ◽  
Transition Modeling

Specific features of the charge-transfer (CT) states and O2p→Cr3d transitions in the octahedral (CrO6)9− complex are considered in the cluster approach. The reduced matrix elements of the electric-dipole transition operator are calculated on many-electron wave functions of the complex corresponding to the initial and final states of a CT transition. Modeling the optic spectrum of chromites has yielded a complicated CT band. The model spectrum is in satisfactory agreement with experimental data which demonstrates the limited validity of the generally accepted concept of a simple structure of CT spectra.

scholarly journals Ab initiotreatment of charge transfer in ion-molecule collisions based on one-electron wave functions

2012 ◽  
Vol 85 (1) ◽  
Author(s):  
P. M. M. Gabás ◽  
L. F. Errea ◽  
L. Méndez ◽  
I. Rabadán
Keyword(s):  
Charge Transfer ◽  
Wave Functions ◽  
Electron Wave

On the Dynamical Spin Susceptibility of Paramagnetic La2CuO4

1990 ◽  
Vol 193 ◽  
Author(s):  
H. Winter ◽  
Z. Szotek ◽  
W. M. Temmerman
Keyword(s):  
Local Density ◽  
Spin Susceptibility ◽  
The Body ◽  
Wave Functions ◽  
Matrix Elements ◽  
Electron Wave ◽  
Energy Bands ◽  
Fermi Surface Nesting ◽  
The Matrix ◽  
Dynamical Spin

ABSTRACTThe self-consistent one-electron wave functions and energy bands obtained by the LMTO-ASA method within the local density approximation (LDA) are used to calculate the wave vector and frequency dependent non-interacting spin susceptibility of paramagnetic La2CuO4 in the body-centred tetragonal (bct) structure. We show that the tendency towards the antiferromagnetic instability is strongly dependent on the effects of the matrix elements which lead to a substantial depression of the susceptibility, especially near the X-point. The Fermi surface nesting properties, although important for the susceptibility, are by far not sufficient for the instability and the interband transitions turn out to be of great significance. Our results indicate that the susceptibility is at least 3 times too small to drive this system through a transition to the antiferromagnetic state, and we discuss possible reasons for this failure.

scholarly journals WHY X(3915) IS SO NARROW AS A χc0(2P) STATE?

2013 ◽  
Vol 28 (28) ◽  
pp. 1350145 ◽  
Author(s):  
YUE JIANG ◽  
GUO-LI WANG ◽  
TIANHONG WANG ◽  
WAN-LI JU
Keyword(s):  
Wave Function ◽  
Quantum Chromodynamics ◽  
Decay Width ◽  
Babar Collaboration ◽  
Wave Functions ◽  
Final States ◽  
Full Width ◽  
Matrix Elements ◽  
Narrow Width ◽  
Open Question

New resonance X(3915) was identified as the charmonium χc0(2P) by BaBar Collaboration, but there still seems an open question of this assignment: why its full width is so narrow? To answer this question, we calculate the Okubo–Zweig–Iizuka (OZI)-allowed strong decays [Formula: see text], where X(3915) is assigned as a χc0(2P) state, and estimate its full width in the cooperating framework of 3P0 model and the Bethe–Salpeter (BS) method using the Mandelstam formalism, during which nonperturbative quantum chromodynamics (QCD) effects of the hadronic matrix elements are well-considered by overlapping integral over the relativistic Salpeter wave functions of the initial and final states. We find the node structure of χc0(2P) wave function resulting in the narrow width of X(3915) and show the dependence of the decay width on the variation of the initial mass of X(3915). We point out that the rate of [Formula: see text] is crucial to confirm whether X(3915) is the χc0(2P) state or not.

NONLEPTONIC PRODUCTION OF CHARMED P-WAVE MESONS FROM $\bar B^{0}_s$ AND $\bar B^0$ DECAYS

2013 ◽  
Vol 28 (21) ◽  
pp. 1350110 ◽  
Author(s):  
YUE JIANG ◽  
GUO-LI WANG ◽  
TIANHONG WANG ◽  
WAN-LI JU ◽  
HUI-FENG FU
Keyword(s):  
Branching Fractions ◽  
Wave Functions ◽  
P Wave ◽  
Final States ◽  
Charmed Meson ◽  
Matrix Elements ◽  
Nonperturbative Qcd ◽  
Nonleptonic Decays ◽  
Near Future

The nonleptonic decays from [Formula: see text] and [Formula: see text] to an orbitally excited P-wave charmed meson are studied within the naive factorization hypothesis. Based on the Mandelstam formalism, and under the framework of the improved Bethe–Salpeter method, the hadronic matrix elements of the decays [Formula: see text] and [Formula: see text] are calculated, in which nonperturbative QCD effects are well considered by overlapping integral over the relativistic Salpeter wave functions of initial and final states. Some of these decays have sizable branching fractions and are expected to be detected in the current and near future experiments.

Magnetotunneling spectroscopy imaging of electron wave functions in self-assembled InAs quantum dots

2001 ◽  
Vol 171 (12) ◽  
pp. 1365
Author(s):  
E.E. Vdovin ◽  
Yu.N. Khanin ◽  
Yu.V. Dubrovskii ◽  
A. Veretennikov ◽  
A. Levin ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Wave Functions ◽  
Electron Wave ◽  
Inas Quantum Dots ◽  
Self Assembled

A free-electron theory of conjugated molecules

1953 ◽  
Vol 49 (4) ◽  
pp. 650-658 ◽  
Author(s):  
J. Stanley Griffith
Keyword(s):  
Free Electron ◽  
Wave Functions ◽  
Electron Charge ◽  
Algebraic Equations ◽  
Electron Wave ◽  
Electron Theory ◽  
Conjugated Molecules ◽  
Electron Charge Density ◽  
Linear Polyenes ◽  
Alternant Hydrocarbons

ABSTRACTThe values of a free-electron eigenfunotion at the carbon nuclei of a conjugated hydrocarbon are found to satisfy a system of algebraic equations. These equations are similar in form to those obtained in the method known as the linear combination of atomic orbitale but only coincide with them for linear polyenes and benzene. The symmetry, degeneracy and energy of the eigenvectors of these free-electron equations correspond exactly to those of the free-electron wave functions found by the usual methods. From this correspondence, a theorem is deduced about the free-electron charge density in alternant hydrocarbons.

Electron wave functions at the nuclear surface

1974 ◽  
Vol 48 (2) ◽  
pp. 91-94 ◽  
Author(s):  
H. Ogata ◽  
J. Asai
Keyword(s):  
Wave Functions ◽  
Nuclear Surface ◽  
Electron Wave
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