Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Miesner, H J"'
Autor:
Stamper-Kurn, D. M., Miesner, H. -J., Chikkatur, A. P., Inouye, S., Stenger, J., Ketterle, W.
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 with measurement. The tunneling rates are a sensitive probe of the bound
Externí odkaz:
http://arxiv.org/abs/cond-mat/9902301
Autor:
Stenger, J., Inouye, S., Stamper-Kurn, D. M., Miesner, H. -J., Chikkatur, A. P., Ketterle, W.
Publikováno v:
Nature 396 (1998) p. 345
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 most experiments condensates in a single weak field seeking state are
Externí odkaz:
http://arxiv.org/abs/cond-mat/9901072
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 collisions and lead to the observed modification of the scattering length. How
Externí odkaz:
http://arxiv.org/abs/cond-mat/9901056
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 immiscibility of multiple components in the condensate, and the second to local
Externí odkaz:
http://arxiv.org/abs/cond-mat/9811161
Autor:
Stamper-Kurn, D. M., Miesner, H. -J., Chikkatur, A. P., Inouye, S., Stenger, J., Ketterle, W.
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 observe phase-space density increases in a gas of sodium atoms by as much as
Externí odkaz:
http://arxiv.org/abs/cond-mat/9805022
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 of condensate oscillations indicate significant interactions between t
Externí odkaz:
http://arxiv.org/abs/cond-mat/9801262
Autor:
Stamper-Kurn, D. M., Andrews, M. R., Chikkatur, A. P., Inouye, S., Miesner, H. -J., Stenger, J., Ketterle, W.
Bose-Einstein condensates of sodium atoms have been confined in an optical dipole trap using a single focused infrared laser beam. This eliminates the restrictions of magnetic traps for further studies of atom lasers and Bose-Einstein condensates. Mo
Externí odkaz:
http://arxiv.org/abs/cond-mat/9711273