Large Nc Confinement, Universal Shocks and Random Matrices (2009)
Blaizot, Jean-Paul, Nowak, Maciej A.
We study the fluid-like dynamics of eigenvalues of the Wilson operator in the context of the order-disorder (Durhuus-Olesen) transition in large $N_c$ Yang-Mills theory. We link the universal...
Confinement, Turbulence and Diffraction Catastrophes (2009)
Blaizot, Jean-Paul, Nowak, Maciej A.
Many features of large N_c transition that occurs in the spectral density of Wilson loops as a function of loop area (observed recently in numerical simulations of Yang-Mills theory by Narayanan and...
Chiral Symmetry in Matter (1996)
Romuald A. Janik, Maciej A. Nowak, Gabor Papp, Ismail Zahed
This paper is a small tribute to his seventieth birthday. In section 2 we formulate a schematic version of the NJL model, focusing on the constituent quark spectrum and its ensuing thermodynamics,...
Random Matrix Filtering in Portfolio Optimization
Gabor Papp, Szilard Pafka, Maciej A. Nowak, Imre Kondor
We study empirical covariance matrices in finance. Due to the limited amount of available input information, these objects incorporate a huge amount of noise, so their naive use in optimization...