Phase of the Fermion Determinant at Nonzero Chemical Potential
| dc.creator | Splittorff, K. | |
| dc.creator | Verbaarschot, J. J. M. | |
| dc.date | 2006-09-29 | |
| dc.date.accessioned | 2026-07-07T10:24:47Z | |
| dc.date.available | 2026-07-07T10:24:47Z | |
| dc.description | We show that in the microscopic domain of QCD (also known as the $ε$-domain) at nonzero chemical potential the average phase factor of the fermion determinant is nonzero for $μ< m_π/2$ and is exponentially suppressed for larger values of the chemical potential. This follows from the chiral Lagrangian that describes the low-energy limit of the expectation value of the phase factor. Explicit expressions for the average phase factor are derived using a random matrix formulation of the zero momentum limit of this chiral Lagrangian. | |
| dc.description | 4 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/hep-lat/0609076 | |
| dc.identifier | http://arxiv.org/abs/hep-lat/0609076 | |
| dc.identifier | Phys.Rev.Lett.98:031601,2007 | |
| dc.identifier | doi:10.1103/PhysRevLett.98.031601 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/176315 | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | Phase of the Fermion Determinant at Nonzero Chemical Potential | |
| dc.type | text |