The question of the existence of a Yang Mills mass gap is a complex and technical one.

In this paper Philip Gibbs asks "Is fundamentality then a relative concept with no absolute bottom, or is there a fundament of physical law which is not derived from anything deeper? "

Are these two questions the same? I ask specifically, is the question of whether or not $\Delta >0$ one and the same question as whether there is an "absolute bottom" as P Gibbs puts it?

  • $\begingroup$ Looks like you want to solve one of Millennium Prize Problems. $\endgroup$ Mar 20, 2019 at 19:00
  • $\begingroup$ @AlexTrounev I don't think an answer to this question would get us much closer to that! If I could just understand the problem statement of this particular problem I'd be a lot happier! $\endgroup$ Mar 20, 2019 at 19:11
  • $\begingroup$ No, they are utterly unrelated. Some QFTs have a mass gap, others do not. $\endgroup$ Mar 20, 2019 at 20:45


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