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2002

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July

  

Reviews of topical problems


Counting vacua in supersymmetric Yang-Mills theory


Russian Federation State Scientific Center A.I. Alikhanov Institute ofTheoretical and Experimental Physics, ul. Bolshaya Cheremushkinskaya 25, Moscow, 117259, Russian Federation

The recent progress concerning the Witten index in N=1 supersymmetric Yang-Mills theory is reviewed. Since 1982 there has been a controversy in counting vacua. The original calculation of the Witten index conflicted with expectations based on the chiral symmetry breaking picture. The controversy was resolved by Witten in 1998 who discovered additional disconnected components in the space of classical vacua in Yang-Mills theory compactified on a three-dimensional torus. We review the resolution of the controversy, describe those additional vacua and the corresponding gauge fields. We also discuss how the Witten index feels the physics of confinement and chiral symmetry breaking.

Fulltext is available at IOP
PACS: 02.20.−a, 11.15.−q, 11.30.Pb (all)
DOI: 10.1070/PU2002v045n07ABEH001109
URL: https://ufn.ru/en/articles/2002/7/a/
Citation: Selivanov K G "Counting vacua in supersymmetric Yang-Mills theory" Phys. Usp. 45 675–686 (2002)
BibTexBibNote ® (generic) BibNote ® (RIS)MedlineRefWorks
TY JOUR
TI Counting vacua in supersymmetric Yang–Mills theory
AU Selivanov, K. G.
PB Physics-Uspekhi
PY 2002
JO Physics-Uspekhi
JF Physics-Uspekhi
JA Phys. Usp.
VL 45
IS 7
SP 675-686
UR https://ufn.ru/en/articles/2002/7/a/
ER https://doi.org/10.1070/PU2002v045n07ABEH001109

:    «   -» 172 729–741 (2002); DOI: 10.3367/UFNr.0172.200207a.0729

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