出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：QCD in the e-regime at nonzero baryon chemical potential μ is reviewed. The focus is on aspects
of the sign problem which are relevant for lattice QCD. It is discussed how spontaneous chiral
symmetry breaking and the sign problem are related through the spectrum of the Dirac operator.
The strength of the sign problem is linked to the quark mass and the chemical potential. Specific
implications for lattice QCD are discussed.
