Positivity of High Density Effective Theory

Details Positivity of High Density Effective Theory Positivity of High Density Effective Theory

2002-02-25

arxiv.org/abs/hep-ph/0202236v2

Phys.Rev. D66 (2002) 071501

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, Revised version, to appear in Rapid Communications of Physical Review D

Scientific paper

10.1103/PhysRevD.66.071501

We show that the effective field theory of low energy modes in dense QCD has positive Euclidean path integral measure. The complexity of the measure of QCD at finite chemical potential can be ascribed to modes which are irrelevant to the dynamics at sufficiently high density. Rigorous inequalities follow at asymptotic density. Lattice simulation of dense QCD should be possible using the quark determinant calculated in the effective theory.

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