Self-consistent linear response approximation for quantum many-body systems

The self-consistent linear response approximation (SCLRA) previously proposed to derive the dispersion of the transverse plasmon in a two-dimensional electron gas [Physica A 127 (1984) 529] is extended to general two-body interactions including the Coulomb interaction. The validity of the conventional ring-diagram approximation is clarified within the framework of the SCLRA.

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Year of publication:	1998
Authors:	Toyoda, Tadashi
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 253.1998, 1, p. 498-506
Publisher:	Elsevier

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10010872694