Abstract
The dynamics of excess electron localization in a bubble (equilibrium radius 17) in liquid He is described in terms of the initial formation of an incipient bubble of radius 3.5, followed by an adiabatic bubble expansion in the ground electronic state, which is described by a hydrodynamic model for the expansion of a spherical cavity in an incompressible liquid. The bubble expansion time at pressure P=0 in liquid He4 is b=3.9 ps; the expansion time exhibits a marked pressure dependence (e.g., b=1.5 ps at P=16 atm) and a small (3%) isotope effect in liquid He3. The interrogation of the electron bubble dynamics by femtosecond absorption spectroscopy is analyzed.
| Original language | English |
|---|---|
| Pages (from-to) | 4079-4082 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 75 |
| Issue number | 22 |
| DOIs | |
| State | Published - 1 Jan 1995 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy