INTER-WIRE TRANSFER OF COLD DRESSED ATOMS

In this paper, the quantum "synaptic" effect is studied that arises between two cold atom streams guided by cylindrical crossed wires carrying static (DC) and radio-frequency (RF) currents. The potential barrier between the two orthogonal atom streams is controlled electronically and atoms can be transferred from one wire to another under certain critical values of the wires' RF and DC currents and the biasing field. The results are interesting in the study of quantum interferometry and quantum registering of cold atoms.

A dual synaptic effect on hair cells in Hermissenda.

Type A photorecptors can produce an initial hyperpolarizing wave followed by a delayed long-lasting increase in firing which is usually accompanied by a small depolarizing wave. The initial hyperpolarizing wave arises from an increase in conductance while the depolarizing wave was shown to arise from a decrease in conductance. The data presented indicate that both effects produced by the type A photoreceptors in ipsilateral hair cells are synaptic.