1. BEC @ JILA June ‘95

2. BEC in external Potetnial V. Bagnato et al. Phys.Rev. 35, p4354 (1987) free space potential

3. Phase transition

4. BEC @ MIT, Sept. ‘95 The shadow cast by a condensate Phase transition

5. BEC in Traps basics Rev.Mod.Phys. 71, p463 (1999)

6. BEC in Traps interactions Rev.Mod.Phys. 71, p463 (1999)

7. Signatures of BEC: Anisotropic expansion

8. TOF expasion movie

9. Collective excitation in TOF (observed in ballistic expansion)

10. Direct non-destructive observation of collective excitations 10 msec. per frame Sloshing motion

11. Shape oscillations “Non-destructive” observation of a time-dependent wave function 5 milliseconds per frame Shape oscillation

12. m=0 quadrupole-type oscillation at 29 Hz Movie, quadrupole oscillation Low T High T

13. Sound = propagating density perturbations 1.3 msec. per frame Sound propagation

14. “Matter wave amplification” Formation of the condensate bosonic stimulation Miesner, Stamper-Kurn, Andrews, Durfee, Inouye, Ketterle, Science 279, 1005 (1998)

15. Two condensates... Interference of condensates Andrews, et al, Science 275, 589 (1997) Cutting expanding

16. Matter WAVES

17. Rf output coupling at 200 Hz A pulsed Atom Laser Gravity 1 mm Atom laser movie

18. Atomic tunnel arrays Confining potential: Bose condensed atoms are loaded into a vertical lattice potential and subsequently tunnel to the continuum. Waves interfere to form pulses in region A. Array Output: Measured pulse period of ~1.1 msec is in excellent agreement with calculated  J = mg  z/ 

19. Atom Laser

20. Measurement of the spatial coherence of a trapped Bose gas at the phase transition I. Bloch, T. W. Haensch & T. Esslinger, Nature 403, p166 (2000)

21. Non linear Matter Wave Optics

22. 4-wave mixing with matter waves L. Deng, et.al. Nature 398, p218 (1999)

23. Stimulated emission/scattering

24. Verstärkung von Materiewellen Phys. Blätt. 57, Nr.5, p55 (2001)

25. Degenerate Fermi Gas Andrew G. Truscottet al. Science 291, p2570 (2001)