Auxiliary particles and Fumi's theorem

Research output: Contribution to journalArticle

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

Fingerprint

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 journalArticle

@article{7ac3264db67546a58ea263edf9e4c4c2,
title = "Auxiliary particles and Fumi's theorem",
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.",
keywords = "Auxiliary particles, Fumi's theorem, Kondo problem",
author = "Stewart Barnes",
year = "1999",
language = "English (US)",
volume = "259-261",
pages = "179--180",
journal = "Physica B: Condensed Matter",
issn = "0921-4526",
publisher = "Elsevier",

}

TY - JOUR

T1 - Auxiliary particles and Fumi's theorem

AU - Barnes, Stewart

PY - 1999

Y1 - 1999

N2 - 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.

AB - 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.

KW - Auxiliary particles

KW - Fumi's theorem

KW - Kondo problem

UR - http://www.scopus.com/inward/record.url?scp=9344236028&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=9344236028&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:9344236028

VL - 259-261

SP - 179

EP - 180

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

ER -