Perfect Actions with Chemical Potential
arXiv:hep-lat/9801022 · doi:10.1016/S0370-2693(98)00269-X
Abstract
We show how to include a chemical potential μin perfect lattice actions. It turns out that the standard procedure of multiplying the quark fields Ψ, \barΨat Euclidean time t by \exp(\pm μt), respectively, is perfect. As an example, the case of free fermions with chemical potential is worked out explicitly. Even after truncation, cut-off effects in the pressure and the baryon density are small. Using a (quasi-)perfect action, numerical QCD simulations for non-zero chemical potential become more powerful, because coarse lattices are sufficient for extracting continuum physics.
10 pages, LaTex, 3 figures
Cited by in corpus (19)
- Deconfinement in dense 2-color QCD
- Overlap Dirac operator at nonzero chemical potential and random matrix theory
- The Scaling of Exact and Approximate Ginsparg-Wilson Fermions
- Quantum field-theoretic machine learning
- Convergence Rate and Locality of Improved Overlap Fermions
- Overlap Hypercube Fermions in QCD Simulations Near the Chiral Limit
- Hadronization of a Quark-Gluon Plasma in the Chromodielectric Model
- Domain-wall and overlap fermions at nonzero quark chemical potential
- Thermodynamics of the ideal overlap quarks on the lattice
- New possibilities for QCD at finite density
- Preconditioning of Improved and ``Perfect'' Fermion Actions
- Lattice cut-off effects and their reduction in studies of QCD thermodynamics at non-zero temperature and chemical potential
- Energy density for chiral lattice fermions with chemical potential
- Perfect Scalars on the Lattice
- Quark Matter in QC(2)D
- Confining properties of QCD at finite temperature and density
- Optimised Dirac Operators on the Lattice: Construction, Properties and Applications
- Overlap Hypercube Fermions in QCD
- Real-space blocking of qubit variables on parallel lattice gauge theory links for quantum simulation