TY - JOUR
KW - paper
AU - Matteo Gatti
AU - Olevano V
AU - Lucia Reining
AU - Tokatly IV
AB - Measurable spectra are often derived from contractions of many-body Green\textquoterights functions. One calculates hence more information than needed. Here we present and illustrate an in principle exact approach to construct effective potentials and kernels for the direct calculation of electronic spectra. In particular, a dynamical but local and real potential yields the spectral function needed to describe photoemission. We discuss for model solids the frequency dependence of this \textquoteleft\textquoteleftphotoemission potential\textquoteright\textquoteright stemming from the nonlocality of the corresponding self-energy.
BT - Phys. Rev. Lett.
CY - ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
DA - AUG 3
DO - 10.1103/PhyRevLett.99.057401
M1 - 5
N2 - Measurable spectra are often derived from contractions of many-body Green\textquoterights functions. One calculates hence more information than needed. Here we present and illustrate an in principle exact approach to construct effective potentials and kernels for the direct calculation of electronic spectra. In particular, a dynamical but local and real potential yields the spectral function needed to describe photoemission. We discuss for model solids the frequency dependence of this \textquoteleft\textquoteleftphotoemission potential\textquoteright\textquoteright stemming from the nonlocality of the corresponding self-energy.
PB - AMER PHYSICAL SOC
PP - ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
PY - 2007
T2 - Phys. Rev. Lett.
TI - Transforming nonlocality into a frequency dependence: A shortcut to spectroscopy
UR - http://dx.doi.org/10.1103/PhyRevLett.99.057401
VL - 99
ER -