We formulate a procedure to obtain gauge-invariant tunneling rate at zero temperature using the recently developed potential approach. This relies on consistent power counting in gauge coupling and derivative expansion. The approach, while numerically more efficient than standard bounce solution method, inherits gauge-dependence of latter when naively implemented. Using Abelian Higgs model, we ...

Dendrodendritic synapses, distributed along mitral cell lateral dendrites, provide powerful and extensive inhibition in the olfactory bulb. Activation of inhibition depends on effective penetration of action potentials into dendrites. Although action potentials backpropagate with remarkable fidelity in apical dendrites, this issue is controversial for lateral dendrites. We used paired somatic a...