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Reference.org
Scalar electrodynamics
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<p>In <a href="/facts/Theoretical_physics/Cs2Y12rQ">theoretical physics</a>, scalar electrodynamics is a theory of a U(1) gauge field coupled to a charged spin 0 <a href="/facts/Scalar_field/8MtPTGob">scalar field</a> that takes the place of the <a href="/facts/Dirac_fermion/gJuu9J69">Dirac fermions</a> in "ordinary" <a href="/facts/Quantum_electrodynamics/zPteAr6G">quantum electrodynamics</a>. The scalar field is charged, and with an appropriate potential, it has the capacity to break the gauge symmetry via the <a href="/facts/Higgs_mechanism/Vs5Cbxyy">Abelian Higgs mechanism</a>. </p>