Unquenched complex Dirac spectra at nonzero chemical potential: two-colour QCD lattice data versus matrix model

Akemann G, Bittner E (2006)
Phys.Rev.Lett. 96(22).

Journal Article | Published | English

No fulltext has been uploaded

Author
;
Abstract
We compare analytic predictions of non-Hermitian chiral random matrix theorywith the complex Dirac operator eigenvalue spectrum of two-colour lattice gaugetheory with dynamical fermions at nonzero chemical potential. The Diraceigenvalues come in complex conjugate pairs, making the action of this theoryreal, and positive for our choice of two staggered flavours. This enables us touse standard Monte-Carlo in testing the influence of chemical potential andquark mass on complex eigenvalues close to the origin. We find an excellentagreement between the analytic predictions and our data for two differentvolumes over a range of chemical potentials below the chiral phase transition.In particular we detect the effect of unquenching when going to very smallquark masses.
Publishing Year
ISSN
eISSN
PUB-ID

Cite this

Akemann G, Bittner E. Unquenched complex Dirac spectra at nonzero chemical potential: two-colour QCD lattice data versus matrix model. Phys.Rev.Lett. 2006;96(22).
Akemann, G., & Bittner, E. (2006). Unquenched complex Dirac spectra at nonzero chemical potential: two-colour QCD lattice data versus matrix model. Phys.Rev.Lett., 96(22).
Akemann, G., and Bittner, E. (2006). Unquenched complex Dirac spectra at nonzero chemical potential: two-colour QCD lattice data versus matrix model. Phys.Rev.Lett. 96.
Akemann, G., & Bittner, E., 2006. Unquenched complex Dirac spectra at nonzero chemical potential: two-colour QCD lattice data versus matrix model. Phys.Rev.Lett., 96(22).
G. Akemann and E. Bittner, “Unquenched complex Dirac spectra at nonzero chemical potential: two-colour QCD lattice data versus matrix model”, Phys.Rev.Lett., vol. 96, 2006.
Akemann, G., Bittner, E.: Unquenched complex Dirac spectra at nonzero chemical potential: two-colour QCD lattice data versus matrix model. Phys.Rev.Lett. 96, (2006).
Akemann, Gernot, and Bittner, E. “Unquenched complex Dirac spectra at nonzero chemical potential: two-colour QCD lattice data versus matrix model”. Phys.Rev.Lett. 96.22 (2006).
This data publication is cited in the following publications:
This publication cites the following data publications:

2 Citations in Europe PMC

Data provided by Europe PubMed Central.

Phase of the fermion determinant at nonzero chemical potential.
Splittorff K, Verbaarschot JJ., Phys. Rev. Lett. 98(3), 2007
PMID: 17358675
Overlap Dirac operator at nonzero chemical potential and random matrix theory.
Bloch J, Wettig T., Phys. Rev. Lett. 97(1), 2006
PMID: 16907367

27 References

Data provided by Europe PubMed Central.

New method of determining Fπ on the lattice
Damgaard, Physical Review D 72(9), 2005
Erratum: QCD Dirac Operator at Nonzero Chemical Potential: Lattice Data and Matrix Model [Phys. Rev. Lett. 92, 102002 (2004)]
Akemann, Physical Review Letters 96(2), 2006

Export

0 Marked Publications

Open Data PUB

Web of Science

View record in Web of Science®

Sources

PMID: 16803303
PubMed | Europe PMC

arXiv hep-lat/0603004

Search this title in

Google Scholar