The Second-Order-Polarization-Propagator-Approximation (SOPPA) in a four-component spinor basis
نویسندگان
چکیده
منابع مشابه
Quadratic response functions in a second-order polarization propagator framework.
The linear and quadratic response functions have been derived for an exact state, based on an exponential parametrization of the time evolution consisting of products of exponentials for orbital rotations and for higher-order excitations. Truncating the linear response function such that the response function itself and its pole structure is correct to second order in Møller-Plesset perturbatio...
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Four-Spinor Reference Sheets
Some facts about 4-spinors listed and discussed. None, well perhaps some, of the work is original. However, locating formulas in other places has proved a timeconsuming process in which one must always worry that the formulas found in any given source assume the other metric ( I use {−1,−1,−1,+1}) or assume some other unexpected preconditions. Here I list some formulas valid in general represen...
متن کاملSpinor Parallel Propagator and Green’s Function in Maximally Symmetric Spaces
We introduce the spinor parallel propagator for maximally symmetric spaces in any dimension. Then, the Dirac spinor Green’s functions in the maximally symmetric spaces Rn, Sn and Hn are calculated in terms of intrinsic geometric objects. The results are covariant and coordinate-independent. ∗E-mail address: [email protected]
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ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 2020
ISSN: 0021-9606,1089-7690
DOI: 10.1063/5.0002389