Formation of Quantum Shock Waves by Merging and Splitting Bose-Einstein Condensates
arXiv:0803.2535 · doi:10.1103/PhysRevLett.101.170404
Abstract
The processes of merging and splitting dilute-gas Bose-Einstein condensates are studied in the nonadiabatic, high-density regime. Rich dynamics are found. Depending on the experimental parameters, uniform soliton trains containing more than ten solitons or the formation of a high-density bulge as well as quantum (or dispersive) shock waves are observed experimentally within merged BECs. Our numerical simulations indicate the formation of many vortex rings. In the case of splitting a BEC, the transition from sound-wave formation to dispersive shock-wave formation is studied by use of increasingly stronger splitting barriers. These experiments realize prototypical dispersive shock situations.
10 pages, 8 figures
References in corpus (5)
- On Dispersive and Classical Shock Waves in Bose-Einstein Condensates and Gas Dynamics
- Vortex proliferation in the Berezinskii-Kosterlitz-Thouless regime on a two-dimensional lattice of Bose-Einstein condensates
- Phase Sensitive Recombination of Two Bose-Einstein Condensates on an Atom Chip
- Quantum Shock Waves - the case for non-linear effects in dynamics of electronic liquids
- Nonlinearity-assisted quantum tunneling in a matter-wave interferometer