Superfluidity Nature of aRotating Bose-Einstein Condensation with Finite Size Effect | ||
| Egyptian Journal of Physics | ||
| Article 5, Volume 46, 1 (In Progress), 2018, Pages 41-51 PDF (1.49 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejphysics.2018.3823.1005 | ||
| Author | ||
| Alyaa Adel Mahmoud* | ||
| Physics Department ,faculty of science ,Minia university | ||
| Abstract | ||
| We report on a superfluid properties of a Bose- Einstein condensate in a rotating harmonic trap. We employ the semiclassical approximation, which is the density of state approach. Our approach provided the finite size effect. The superfluid fraction of bosons and its heat capacity at constant volume are investigated. The calculated results provide a good qualitative agreement with the measured experimental results for superfluid helium 4H. Moreover, furnish useful qualitatively theoretical results for a spectroscopic measurement of the superfluid fraction of an ultracold atomic gas [N. R. Cooper and Z. Hadzibabic, Phys. Rev. Lett. 104, 030401 (2010)]. Our results show that both The superfluid fraction of bosons and its heat capacity depend on the number of the atoms. This significant dependence should be considered when the it in situ widths are used in extracting measurable experimental quantities. Our approach can be extended to consider the rotating condensate in optical potential . | ||
| Keywords | ||
| Super fluid helium; Bose ensitien condensation; In situ size; Lambda_transation | ||
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