6 papers
The Microscopic Dirac Operator Spectrum
P. H. Damgaard
We review the exact results for microscopic Dirac operator spectra based on either Random Matrix Theory, or, equivalently, chiral Lagrangians. Implications for lattice calculations…
The Dirac Operator Spectrum and Effective Field Theory
P. H. Damgaard
When chiral symmetry is spontaneously broken, the low-energy part of the Dirac operator spectrum can be computed analytically in the chiral limit. The tool is effective field theor…
QCD Dirac Spectra With and Without Random Matrix Theory
P. H. Damgaard
Recent work on the spectrum of the Euclidean Dirac operator spectrum show that the exact microscopic spectral density can be computed in both random matrix theory, and directly fro…
Deconfinement, Screening and Abelian Projection at Finite Temperature
P. H. Damgaard, J. Greensite, M. Hasenbusch
The behavior of static sources transforming according to different irreducible representations of the gauge group is studied in the context of finite temperature lattice gauge theo…
Symmetries and the Antibracket
J. Alfaro, P. H. Damgaard
Requiring that a Lagrangian path integral leads to certain identities (Ward identities in a broad sense) can be formulated in a general BRST language, if necessary by the use of co…
Collective Fields for QCD
P. H. Damgaard, H. B. Nielsen, R. Sollacher
A gauge-symmetric approach to effective Lagrangians is described with special emphasis on derivations of effective low-energy Lagrangians from QCD. The examples we discuss are base…