✦ LIBER ✦

Comparing matrix models and QCD lattice data with chemical potential

✍ Scribed by Gernot Akemann; Tile Wettig

Publisher: Elsevier Science
Year: 2004
Tongue: English
Weight: 292 KB
Volume: 129-130
Category: Article
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(03)02630-6

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✦ Synopsis

We present a quantitative analysis of the microscopic Dirac spectrum which is complex in the presence of a nonvanishing quark chemical potential.

Data from quenched SU(3) lattice simulations for different volumes V and small values of the chemical potential p are compared to analytical predictions from matrix models. We confirm the existence of two distinct limits for weakly and strongly nonhermitian Dirac operators. Good agreement is found in both limits, confirming the different scaling of chemical potential and eigenvalues with the volume.

📜 SIMILAR VOLUMES

Density profiles of small Dirac operator

Density profiles of small Dirac operator eigenvalues for two color QCD at nonzero chemical potential compared to matrix models

✍ Gernot Akemann; Elmar Bittner; Maria-Paola Lombardo; Harald Markum; Rainer Pulli 📂 Article 📅 2005 🏛 Elsevier Science 🌐 English ⚖ 154 KB

We investigate the eigenvalue spectrum of the staggered Dirac matrix in two color QCD at nite chemical potential. The pro les of complex eigenvalues close to the origin are compared to a complex generalization of the chiral Gaussian Symplectic Ensemble, con rming its predictions for weak and strong