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BEC @ JILA

BEC @ JILA. June ‘95. BEC in external Potetnial V. Bagnato et al. Phys.Rev. 35 , p4354 (1987). free space. potential. Phase transition. Phase transition. The shadow cast by a condensate. BEC @ MIT, Sept. ‘95. BEC in Traps basics Rev.Mod.Phys. 71 , p463 (1999).

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BEC @ JILA

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  1. BEC @ JILA June ‘95

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

  3. Phase transition

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

  5. BEC in TrapsbasicsRev.Mod.Phys. 71, p463 (1999)

  6. BEC in TrapsinteractionsRev.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. Sloshing motion Direct non-destructive observation of collective excitations 10 msec. per frame

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

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

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

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

  15. Matter WAVES

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

  17. 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 calculatedwJ = mgDz/h

  18. Atom Laser

  19. Measurement of the spatial coherence of a trappedBose gas at the phase transitionI. Bloch, T. W. Haensch & T. Esslinger, Nature 403, p166 (2000)

  20. Non linear Matter Wave Optics

  21. 4-wave mixing with matter wavesL. Deng, et.al. Nature 398, p218 (1999)

  22. Stimulated emission/scattering

  23. Verstärkung von MateriewellenPhys. Blätt. 57, Nr.5, p55 (2001)

  24. Degenerate Fermi GasAndrew G. Truscottet al. Science 291, p2570 (2001)

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