Instantons in non-perturbative QCD vacuum

Research output: Contribution to journalArticlepeer-review

73 Scopus citations


The effects of large-scale vacuum fluctuations on instantons of a small size ρ{variant} are considered. We find the instanton density with account of the gluon vacuum condensate. It is shown that the instanton gas approximation fails at unexpectedly small ρ{variant}. The instanton interaction with the gluon condensate already becomes strong at ρ{variant} ≈ (1.1 GeV)-, while the absolute bound for the use of quasiclassical methods lies at ρ{variant} ≈ (0.5 GeV)-1.

Original languageEnglish (US)
Pages (from-to)45-54
Number of pages10
JournalNuclear Physics, Section B
Issue number1
StatePublished - Mar 17 1980

Bibliographical note

Copyright 2014 Elsevier B.V., All rights reserved.


Dive into the research topics of 'Instantons in non-perturbative QCD vacuum'. Together they form a unique fingerprint.

Cite this