If the gluon field tensor is represented as Gμν, then the gluon condensate is the vacuum expectation value . It is not clear yet whether this condensate is related to any of the known phase changes[which?] in quark matter. There have been scattered studies of other types of gluon condensates, involving a different number of gluon fields.
For more on the context in which this quantity occurs, see the article on the QCD vacuum.
- Quantum chromodynamics
- QCD vacuum and chiral condensates
- Vacuum in quantum field theory
- Quark-gluon plasma
- QCD matter
Savvidy, G. K., Infrared instability of the vacuum state of gauge theories and asymptotic freedom 
|This physics-related article is a stub. You can help Wikipedia by expanding it.|