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. (7 Nov 1977). "Infrared instability of the vacuum state of gauge theories and asymptotic freedom". Physics Letters B. 71 (1): 133–134. doi:10.1016/0370-2693(77)90759-6.
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