title: Effect of pressure on statics, dynamics, and stability of multielectron bubbles.
abstract: The effect of positive and negative pressure on the modes of oscillation of a multielectron bubble in liquid helium is calculated. Already at low pressures of the order of 10-100 mbar, these effects are found to significantly modify the frequencies of oscillation of the bubble. Stabilization of the bubble is shown to occur in the presence of a small negative pressure, which expands the bubble radius. Above a threshold negative pressure, the bubble is unstable.
authors.affiliation: Department of Physics, Harvard University, 14-A Oxford Street, Cambridge, Massachusetts 02139, USA.
authors.forename: J
authors.initials: J
authors.lastname: Tempere
authors.forename: I F
authors.initials: IF
authors.lastname: Silvera
authors.forename: J T
authors.initials: JT
authors.lastname: Devreese