Mutual information and electron correlation in momentum space
نویسندگان
چکیده
منابع مشابه
Probing electron correlation and nuclear dynamics in Momentum Space
Orbital imaging experiments employing Electron Momentum Spectroscopy are subject to many complications, such as distorted wave effects, conformational mobility in the electronic ground state, ultra-fast nuclear dynamics in the final state, or a dispersion of the ionization intensity over electronically excited (shake-up) configurations of the cation. The purpose of the present contribution is t...
متن کاملPhase-Space Position-Momentum Correlation and Potentials
Solutions to the radial Schrödinger equation of a particle in a quantum corral are used to probe how the statistical correlation between the position, and The momentum of the particle depends on the effective potential. The analysis is done via the Wigner function and its Shannon entropy. We show by comparison to the particle-in-a-box model that the attractive potential increases the magnitude ...
متن کاملCorrelation Distance and Bounds for Mutual Information
The correlation distance quantifies the statistical independence of two classical or quantum systems, via the distance from their joint state to the product of the marginal states. Tight lower bounds are given for the mutual information between pairs of two-valued classical variables and quantum qubits, in terms of the corresponding classical and quantum correlation distances. These bounds are ...
متن کاملMomentum-space properties from coordinate-space electron density.
Electron density and electron momentum density, while independently tractable experimentally, bear no direct connection without going through the many-electron wave function. However, invoking a variant of the constrained-search formulation of density-functional theory, we develop a general scheme (valid for arbitrary external potentials) yielding decent momentum-space properties, starting excl...
متن کاملElectron correlation effects in the spectral momentum density of graphite
The spectral function of an annealed evaporated carbon film was measured using a high-energy ~e,2e! spectrometer. Interpretation of these data was relatively straightforward due to low levels of multiple scattering. Large lifetime broadening and strong asymmetries were found in the observed line shapes, with tails extending to large binding energies. A conventional band-structure calculation wi...
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: The Journal of Chemical Physics
سال: 2006
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.2180777