title: Analog of photon-assisted tunneling in a Bose-Einstein condensate.
abstract: We study many-body tunneling of a small Bose-Einstein condensate in a periodically modulated, tilted double-well potential. Periodic modulation of the trapping potential leads to an analog of photon-assisted tunneling, with distinct signatures of the interparticle interaction visible in the amount of particles transferred from one well to the other. In particular, under experimentally accessible conditions there exist well-developed half-integer Shapiro-like resonances.
authors.affiliation: Institut für Physik, Carl von Ossietzky Universität, D-26111 Oldenburg, Germany.
authors.forename: André
authors.initials: A
authors.lastname: Eckardt
authors.forename: Tharanga
authors.initials: T
authors.lastname: Jinasundera
authors.forename: Christoph
authors.initials: C
authors.lastname: Weiss
authors.forename: Martin
authors.initials: M
authors.lastname: Holthaus