0 U ( 1 ) Field Theory in the Limit of a Large Coupling Constant
نویسنده
چکیده
We consider a massive fermion interacting with a U(1) gauge field in the limit of a large coupling constant. It is found that the current has a generalized London term that can originate massive excitations for two of the three components of the gauge field, which disappear for a free particle at rest. The origin of the superconductive term is due to a partial breaking of the gauge symmetry in the limit of a large coupling constant. Beside, the scalar potential generated by the particle, the only component of the gauge field that keeps gauge invariance, increases with the square of the distance. These results should give a path towards the derivation of quark confinement from QCD.
منابع مشابه
Weak-coupling phase diagram of the extended Hubbard model with correlated-hopping interaction
A one-dimensional model of interacting electrons with on-site U, nearest-neighbor V, and correlatedhopping interaction T* is studied at half filling using the continuum-limit field theory approach. The groundstate phase diagram is obtained for a wide range of coupling constants. In addition to the insulating spinand charge-density wave phases for large U and V, respectively, we identify bond-lo...
متن کاملStatic solutions in the U ( 1 ) gauged Skyrme model
We use a prescription to gauge the SU(2) Skyrme model with a U(1) field, characterised by a conserved Baryonic current. This model reverts to the usual Skyrme model in the limit of the gauge coupling constant vanishing. We show that there exist axially symmetric static solutions with zero magnetic charge, which can be electrically either charged or uncharged. The energies of the (uncharged) gau...
متن کاملOn the field theory limit of D-instantons
We study the dilaton/axion configuration near D-instantons in type IIB superstring theory. In the field theory limit, the metric near the instantons becomes flat in the string frame as well as in the Einstein frame. In the large N limit, the string coupling constant becomes zero except near the origin. The supersymmetry of this configuration is analyzed. An implication of this result to the IIB...
متن کاملv 2 2 7 O ct 1 99 8 UCB – PTH – 98 / 49 , LBNL – 42387 , SPIN - 1998 / 1 hep - th / 9810128 On The Field Theory Limit Of D - Instantons
We study the dilaton/axion configuration near D-instantons in type IIB superstring theory. In the field theory limit, the metric near the instantons becomes flat in the string frame as well as in the Einstein frame. In the large N limit, the string coupling constant becomes zero except near the origin. The supersymmetry of this configuration is analyzed. An implication of this result to the IIB...
متن کاملFinite temperature Functional RG, droplets and decaying Burgers Turbulence
– The functional RG (FRG) approach to pinning of d-dimensional manifolds is reexamined at any temperature T . A simple relation between the coupling function R(u) and a physical observable is shown in any d. In d = 0 its beta function is displayed to a high order, ambiguities resolved; for random field disorder (Sinai model) we obtain exactly the T = 0 fixed point R(u) as well as its thermal bo...
متن کامل