Auxiliary particles and Fumi's theorem

Stewart Barnes

Research output: Contribution to journal › Article

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 languageEnglish (US)
Pages (from-to)179-180
Number of pages2
JournalPhysica B: Condensed Matter
Volume259-261
StatePublished - 1999

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Ground state
theorems
S matrix theory
Scattering
Phase shift
ground state
Infrared radiation
energy
divergence
phase shift

Keywords

  • Auxiliary particles
  • Fumi's theorem
  • Kondo problem

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Auxiliary particles and Fumi's theorem. / Barnes, Stewart.

In: Physica B: Condensed Matter, Vol. 259-261, 1999, p. 179-180.

Research output: Contribution to journal › Article

Barnes, S 1999, 'Auxiliary particles and Fumi's theorem', Physica B: Condensed Matter, vol. 259-261, pp. 179-180.
Barnes S. Auxiliary particles and Fumi's theorem. Physica B: Condensed Matter. 1999;259-261:179-180.
Barnes, Stewart. / Auxiliary particles and Fumi's theorem. In: Physica B: Condensed Matter. 1999 ; Vol. 259-261. pp. 179-180.
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