title: Current drive in a ponderomotive potential with sign reversal.
abstract: Noninductive current drive can be accomplished through ponderomotive forces with high efficiency when the potential changes sign over the interaction region. The effect, which operates somewhat like a Maxwell demon, can be practiced upon both ions and electrons. The current-drive efficiencies, in principle, might be higher than those possible with conventional rf current-drive techniques. It remains, however, for us to identify how the effect might be implemented in a magnetic fusion device in a practical manner.
authors.affiliation: Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543, USA.
authors.forename: N J
authors.initials: NJ
authors.lastname: Fisch
authors.forename: J M
authors.initials: JM
authors.lastname: Rax
authors.forename: I Y
authors.initials: IY
authors.lastname: Dodin