4 papers
Effective Quark Models in QCD at low and intermediate energies
A. A. Andrianov, V. A. Andrianov, D. Espriu +1
The effective quark models are employed to describe the hadronization of QCD in the quark sector. They reveal a different structure depending on how the spontaneous chiral symmetry…
Triviality of GHZ operators of higher spin
J. Savinien, J. Taron, R. Tarrach
We prove that local observables of the set of GHZ operators for particles of spin higher than 1/2 reduce to direct sums of the spin 1/2 operators , and, therefore, no ne…
Quantum separability, time reversal and canonical decompositions
Anna Sanpera, Rolf Tarrach, Guifre Vidal
We propose an interpretation of quantum separability based on a physical principle: local time reversal. It immediately leads to a simple characterization of separable quantum stat…
Is There Physics in Landau Poles ?
Rolf Tarrach
Triviality and Landau poles are often greeted as harbingers of new physics at 1 TeV. After briefly reviewing the ideas behind this, a model of singular quantum mechanics is introdu…