Aspects of Interacting Electromagnetic and Torsion Fields |
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Authors: | Patricio Gaete José A Helaÿel-Neto |
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Institution: | Dipartimento di Fisica “E. Amaldi”, Università di Roma Tre, I-00146 Rome, Italy |
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Abstract: | The interaction energy is studied for the coupling of axial torsion fields with photons in the presence of an external electromagnetic
field. To this end, we compute the static quantum potential. Our discussion is carried out using the gauge-invariant but path-dependent
variables formalism, which is alternative to the Wilson loop approach. Our results show that the static potential is a Yukawa
correction to the usual static Coulomb potential. Interestingly, when this calculation is done by considering a mass term
for the gauge field, the Coulombic piece disappears leading to a screening phase. |
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