Abstract
We give a simple derivation of the Higgs phenomenon in an Abelian light front gauge theory. It is based on a finite-volume quantization with antiperiodic scalar fields and periodic gauge field. An infinite set of degenerate vacua in the form of coherent states of the scalar field, that minimize the light front energy, is constructed. The corresponding effective Hamiltonian describes a massive vector field whose third component is generated by the would-be Goldstone boson. This mechanism, understood here quantum mechanically in the form analogous to the spacelike quantization, is derived without gauge fixing as well as in the unitary and the light-cone gauge.
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