1994/05/31 by V. P. Gusynin, V. A. Miransky, I. A. Shovkovy · 7 citations
Chemistry · Physics and Astronomy · #Action (physics) #Chemistry #Chiral symmetry breaking #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Cosmology and Gravitation Theories #Explicit symmetry breaking #Fermion #Flavor #High-Energy Particle Collisions Research #Magnetic field #Particle physics #Physics #Quantum mechanics #Spontaneous symmetry breaking #Symmetry (geometry) #Symmetry breaking #Theoretical physics #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevlett.76.1005
published as Phys.Rev.Lett. 73 (1994) 3499-3502; Erratum-ibid. 76 (1996) 1005 · 11 pages, LaTeX. The final version (with minor corrections) which appeared in Phys.Rev.Lett. 73 (1994) 3499
arxiv created 1995/10/11 · openalex publication_date 1996/02/05 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
It is shown that in 2+1 dimensions, a constant magnetic field is a strong catalyst of dynamical flavor symmetry breaking, leading to generating a fermion dynamical mass even at the weakest attractive interaction between fermions. The effect is illustrated in the Nambu-Jona-Lasinio model in a magnetic field. The low-energy effective action in this model is derived and the thermodynamic properties of the model are established. The relevance of this effect for planar condensed matter systems is pointed out.