| | |
| | |
Stat |
Members: 3645 Articles: 2'504'585 Articles rated: 2609
25 April 2024 |
|
| | | |
|
Article overview
| |
|
Cold Atoms and Creation of New States of Matter: Bose-Einstein Condensates, Kapitza States, and '2D Magnetic Hydrogen Atoms' | Lene Vestergaard Hau
; B. D. Busch
; Chien Liu
; Michael M. Burns
; J. A. Golovchenko
; | Date: |
25 Apr 1998 | Journal: | Photonic, Electronic, and Atomic Collisions (Proceedings of the XX.ICPEAC, Vienna, Austria, July, 1997, eds. F. Aumayr and HP. Winter) World Scientific, Singapore, 1998. | Subject: | cond-mat | Abstract: | We have succeded in creating Bose-Einstein condensates with 2 million sodium atoms in a ’4D’ magnetic trap. We show the dynamic formation of a condensate as evaporative cooling proceeds. We also present a series of trap-release pictures clearly showing the distinctly different modes of expansion of condensate and thermal cloud. We further give two examples of wave guides for atomic de Broglie matter waves. One structure, the Kapitza wave guide, uses the interaction between an electrically polarizable atom and a charged wire. For stably bound orbits, a dynamical stabilization with time dependent potentials is necessary. This system, which can be tuned freely between classical and quantum regimes, shows chaotic behavior in the classical limit. The static counterpart of this wave guide leads to the introduction of the ’angular momentum quantum ladder’ . The second wave guide structure is based upon the interaction between a current carrying wire and the magnetic dipole moment of an atom. A hydrogenic spectrum of bound states is derived through the concept of supersymmetry. | Source: | arXiv, cond-mat/9804277 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |