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The Schwinger model on a circle with an unconventional boundary condition

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Publication details

JournalPhysics Letters B
DatePublished - 17 Jan 1991
Issue number1-2
Number of pages4
Pages (from-to)169-172
Original languageEnglish


We study quantum electrodynamics with a massless fermion field on a circle in Coulomb gauge, imposing a boundary condition such that the fields become their charge conjugates when they go around the circle. The theory is found to be equivalent to an anti-periodic free massive scalar field theory with two ground states.

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