NDLI: BEC and Dimensional Crossover in a Boson Gas Within Multi-slabs

Content Provider	Springer Nature Link
Author	Rodríguez, O. A. Solís, M. A.
Copyright Year	2013
Abstract	For an ideal Bose-gas within a multi-slabs periodic structure, we report a dimensional crossover and discuss whether a BEC transition at T $_{ c }$≠0 disappears or not. The multi-slabs structure is generated via a Kronig-Penney potential perpendicular to the slabs of width a and separated by a distance b. The ability of the particles to jump between adjacent slabs is determined by the hight V $_{0}$ and width b of the potential barrier. Contrary to what happens in the boson gas inside a zero-width multilayers case, where the critical temperature diminishes and goes up again as a function of the wall separation, here the T $_{ c }$ decreases continuously as the potential barrier height and the cell size a+b increase. The specific heat shows a crossover from 3D to 2D when the height of the potential or the barrier width increase, in addition to the well known peak related to the Bose-Einstein condensation.
Starting Page	435
Ending Page	441
Page Count	7
File Format	PDF
ISSN	00222291
Journal	Journal of Low Temperature Physics
Volume Number	175
Issue Number	1-2
e-ISSN	15737357
Language	English
Publisher	Springer US
Publisher Date	2013-10-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bose gas Dimensional crossover Critical temperature Specific heat Condensed Matter Physics Characterization and Evaluation of Materials Magnetism, Magnetic Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Materials Science

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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