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- Title
Cover Picture: Fortschritte der Physik 8 2009.
- Abstract
The cover page of 2009 shows highresolution interference “quantum carpet” patterns for the momentum wave function of an interacting BoseEinstein condensate BEC. As time progresses from back to front, the manybody mean field interaction of the BEC first leads to a broadening of the wave function, but then also to a timevarying interference structure by inducing sitedependent nonlinear phase shifts when the BEC is confined in a spatially periodic potential. Imaging the wave function in momentum space for different times leads to a pattern that one reminds of a carefully woven carpet and is hence termed “quantum carpet”. Quantum carpets beautifully demonstrate the surprisingly high matter wave coherence of particleparticle interactions in the zerotemperature limit.
- Subjects
OPTICAL interference; QUANTUM theory; MOMENTUM wave function; BOSE-Einstein condensation; MEAN field theory; PHASE shift (Nuclear physics); COLLISIONS (Nuclear physics); COHERENCE (Optics)
- Publication
Fortschritte der Physik / Progress of Physics, 2009, Vol 57, Issue 8, pNA
- ISSN
0015-8208
- Publication type
Article
- DOI
10.1002/prop.200990007