2009/07/31 by V. Pangon, S. Nagy, János Polonyi +2 · 1 citation
Mathematics · Physics and Astronomy · #Action (physics) #Cosmic censorship hypothesis #Cutoff #Degeneracy (biology) #Effective action #Gravitational singularity #Mathematical physics #Mathematics #Physics #Quantum #Quantum chaos and dynamical systems #Quantum many-body systems #Quantum mechanics #Quantum, superfluid, helium dynamics #Renormalization #Renormalization group #Semiclassical physics #Theoretical physics #cond-mat.str-el #hep-th
paper · pdf · doi:10.1016/j.physletb.2010.09.041
published as Phys.Lett.B694:89-93,2010 · 12 pages, 4 figures. Final version
openalex publication_date 2010/09/22 · arxiv created 2010/10/22 · arxiv updated 2010/10/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
It is pointed out that increasingly attractive interactions, represented by partially concave local potential in the Lagrangian, may lead to the degeneracy of the blocked, renormalized action at the gliding cutoff scale by tree-level renormalization. A quantum counterpart of this mechanism is presented in the two-dimensional sine-Gordon model. The presence of Quantum Censorship is conjectured which makes the loop contributions pile up during the renormalization and thereby realize an approximate semiclassical effect.