Catalysis of dynamical flavor symmetry breaking by a magnetic field in (2+1)-dimensions

May 12, 1994
10 pages
Published in:
  • Phys.Rev.Lett. 73 (1994) 3499-3502,
  • Phys.Rev.Lett. 76 (1996) 1005 (erratum)
e-Print:
Report number:
  • NSF-ITP-94-44

Citations per year

19942002201020182025010203040
Abstract:
It is shown that in 2+1 dimensions,a constant magnetic field is a strong cata- lyst of dynamical flavor symmetry breaking,leading to generating a fermion dy- namical 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 pro- perties of the model are established.The relevance of this effect for planar condensed matter systems and for 3+1 dimensional theories at high temperature is pointed out.
  • field theoretical model: relativistic
  • dimension: 3
  • magnetic field
  • symmetry: flavor
  • dynamical symmetry breaking
  • fermion: mass
  • mass: fermion
  • Jona-Lasinio-Nambu model
  • finite temperature
  • effective action