The overlap function in many-body theory
نویسندگان
چکیده
منابع مشابه
Many Body Theory
We study theoretically the spin response functions using the relativistic many body theory. The spin response functions in the relativistic theory are reduced largely from the ones of the non-relativistic theory. This happens particularly to the longitudinal spin responses. This fact is able to remove the difficulty in reproducing the ratio of the longitudinal and transverse response functions ...
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Dirac sea effects are perhaps the most interesting characteristic of relativistic many body theory. In nuclear matter e.g. the effective mass of the nucleons and their coupling to the mesons undergo considerable corrections due to vacuum fluctuations [1], [2]. In addition, relativistic many body theory predicts strong corrections of the properties of hadrons at high nuclear matter densities. Un...
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A general principle of any effective low-energy theory is that if a system is probed or interacts at low energies, resolution is also low, and fine details of what happens at short distances or in high-energy intermediate states are not resolved [ 1]. In this case, it is easier and more efficient to use low-energy degrees of freedom for low-energy processes. The short-distance structure can be ...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1968
ISSN: 0550-3213
DOI: 10.1016/0550-3213(68)90072-2