title: Particle focusing in oscillating dissipative billiards.
abstract: We develop and analyze a scheme to achieve both spatial and energetic focusing of an ensemble of neutral particles which is based on an oscillating billiard with frictional forces. The interplay of two competing mechanisms, acceleration due to collisions with the oscillating billiard walls and deceleration caused by friction, leads to the emergence of attractors in phase space. Their specific properties, i.e., spatial localization and energy spread, can be controlled and tuned by varying, e.g., the frequency of the time-dependent billiard.
authors.affiliation: Zentrum für Optische Quantentechnologien, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany.
authors.forename: Christoph
authors.initials: C
authors.lastname: Petri
authors.forename: Florian
authors.initials: F
authors.lastname: Lenz
authors.forename: Fotis K
authors.initials: FK
authors.lastname: Diakonos
authors.forename: Peter
authors.initials: P
authors.lastname: Schmelcher