Berakdar, J. and Kidun, O., Ernst, A.
In: Correlations, Polarization, and Ionization in Atomic Systems pp 64-69 (Eds.) Madison, D. H. and Schulz, M., AIP, Melville/New York, USA 2002In this work we discuss the influence of electronic correlation in finite and extended systems. In particular we stress the fact that the electronic correlation renormalizes the particle-particle interaction in a characteristic way and interpolate these ideas, well-known for extended systems, to small systems. We also sketch briefly how the thermodynamics and critical phenomena in finite systems may be treated.
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