Conundrums at Finite Density

Abstract

Extending the successes of lattice quantum chromodynamics(QCD) at zero as well as nonzero temperatures to nonzero density is extremely desirable in view of the quest for the QCD phase diagram both theoretically and experimentally. It turns out though to give rise to some conundrums whose resolution may assist progress in this exciting but difficult area, and should therefore be sought actively.

Comments: 11 pages, 6 figures, To appear in the proceeding of the international conference on "Criticality in QCD and the Hadron Resonance Gas", 29-31 July 2020, Wroclaw, Poland