Confinement in the presence of external fields and axions
نویسنده
چکیده
For a theory with a pseudo scalar coupling φFF̃ and in the case that there is a constant electric or magnetic strength expectation value, we compute the interaction potential within the structure of the gauge-invariant but pathdependent variables formalism. While in the case of a constant electric field strength expectation value the static potential remains Coulombic, in the case of a constant magnetic field strength the potential energy is the sum of a Yukawa and a linear potentials, leading to the confinement of static charges. PACS number(s): 11.10.Ef, 11.15.-q
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