Abstract
Fumi's theorem relates the ground state energy to phase shifts and hence the scattering matrix. In turn a theorem associated with the auxiliary particles relates the ground state energy to its self-energy, on shell and implies that the latter can be written in terms of the scattering matrix. These relationships are described along with the role of the infrared divergences.
Original language | English (US) |
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Pages (from-to) | 179-180 |
Number of pages | 2 |
Journal | Physica B: Condensed Matter |
Volume | 259-261 |
DOIs | |
State | Published - Jan 1 1999 |
Keywords
- Auxiliary particles
- Fumi's theorem
- Kondo problem
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering