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7 papers
Quantum tunneling across spin domains in a Bose-Einstein condensate
D. M. Stamper-Kurn, H. -J. Miesner, A. P. Chikkatur +3
Quantum tunneling was observed in the decay of metastable spin domains in gaseous Bose-Einstein condensates. A mean-field description of the tunneling was developed and compared wi…
Spin domains in ground state spinor Bose-Einstein condensates
J. Stenger, S. Inouye, D. M. Stamper-Kurn +3
Bose-Einstein condensates of dilute atomic gases, characterized by a macroscopic population of the quantum mechanical ground state, are a new, weakly interacting quantum fluid. In…
Strongly enhanced inelastic collisions in a Bose-Einstein condensate near Feshbach resonances
J. Stenger, S. Inouye, M. R. Andrews +3
The properties of Bose-Einstein condensed gases can be strongly altered by tuning the external magnetic field near a Feshbach resonance. Feshbach resonances affect elastic collisio…
Observation of metastable states in spinor Bose-Einstein condensates
H. -J. Miesner, D. M. Stamper-Kurn, J. Stenger +3
Bose-Einstein condensates have been prepared in long-lived metastable excited states. Two complementary types of metastable states were observed. The first is due to the immiscibil…
Reversible Formation of a Bose-Einstein Condensate
D. M. Stamper-Kurn, H. -J. Miesner, A. P. Chikkatur +3
We present a method of adiabatically changing the local phase-space density of an ultracold gas, using a combination of magnetic and optical forces. Applying this method, we observ…
Excitations of a Bose-Einstein Condensate at Non-Zero Temperature: A Study of Zeroth, First and Second Sound
D. M. Stamper-Kurn, H. -J. Miesner, S. Inouye +2
Collective excitations of a dilute Bose gas were probed above and below the Bose-Einstein condensation temperature. The temperature dependencies of the frequency and damping rates…