161 citations · 391 across the 8 of their papers we have counts for
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Why (staggered fermions)^{1/4} fail at finite density
Benjamin Svetitsky, Yigal Shamir, Maarten Golterman
Because the staggered fermion determinant is complex at nonzero mu, taking its fourth root leads to phase ambiguities. These unphysical effects cause the measure to become disconti…
Microscopic eigenvalue correlations in QCD with imaginary isospin chemical potential
P. H. Damgaard, U. M. Heller, K. Splittorff +2
We consider the chiral limit of QCD subjected to an imaginary isospin chemical potential. In the epsilon-regime of the theory we can perform precise analytical calculations based o…
Extracting from small lattices: unquenched results
P. H. Damgaard, U. M. Heller, K. Splittorff +2
We calculate the response of the microscopic Dirac spectrum to an imaginary isospin chemical potential for QCD with two dynamical flavors in the chiral limit. This extends our prev…
Breakdown of staggered fermions at nonzero chemical potential
Maarten Golterman, Yigal Shamir, Benjamin Svetitsky
The staggered fermion determinant is complex when the quark chemical potential mu is nonzero. Its fourth root, used in simulations with dynamical fermions, will have phase ambiguit…