Formation of Quantum Shock Waves by Merging and Splitting Bose-Einstein Condensates

Details Formation of Quantum Shock Waves by Merging and Splitting Bose-Einstein Condensates Formation of Quantum Shock Waves by Merging and Splitting Bose-Einstein Condensates

2008-03-18

arxiv.org/abs/0803.2535v1

Physics

Condensed Matter

Other Condensed Matter

10 pages, 8 figures

Scientific paper

10.1103/PhysRevLett.101.170404

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.

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