Abstract
A QED-based “bootstrap” mechanism is suggested as a possible source of vacuum energy. In place of the conventional assumption that the vacuum expectation value of the current operator j μ vanishes in the absence of a classical, external field, one notes the possibility that, on very small scales, the vacuum fluctuations can generate an equation for an effective, C-number \({A}_{\mu}^{\mathrm{ vac}}\) giving rise to a finite and computable vacuum energy.
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