75 citations · 75 across the 1 of their papers we have counts for
11 papers
Solution of the Complex Action Problem in the Potts Model for Dense QCD
M. Alford, S. Chandrasekharan, J. Cox +1
Monte Carlo simulations of lattice QCD at non-zero baryon chemical potential suffer from the notorious complex action problem. We consider QCD with static quarks coupled to a l…
New possibilities for QCD at finite density
M. Alford
I review the growing theoretical indications that at high densities color SU(3) gauge symmetry is spontaneously broken by the formation of a quark pair condensate. This leads to a…
Color Superconductivity and Signs of its Formation
M. Alford, K. Rajagopal, F. Wilczek
We study finite density QCD in an approximation in which the interaction between quarks is modelled on that induced by instantons. We sketch the mechanism by which chiral symmetry…
A quark action for very coarse lattices
M. Alford, Timothy Klassen, Peter Lepage
We investigate a tree-level O(a^3)-accurate action, D234c, on coarse lattices. For the improvement terms we use tadpole-improved coefficients, with the tadpole contribution measure…
Improving Lattice Quark Actions
M. Alford, T. R. Klassen, G. P. Lepage
We explore the first stage of the Symanzik improvement program for lattice Dirac fermions, namely the construction of doubler-free, highly improved classical actions on isotropic a…
Towards Highly Improved Quark Actions
M. G. Alford, T. R. Klassen, G. P. Lepage
We describe two ideas useful in the construction of highly improved quark actions for simulations on coarse lattices: (1) Field transformations to solve the doubler problem without…