Real-space condensation in a dilute Bose gas at low temperature
dc.citation.epage | 1182 | en_US |
dc.citation.issueNumber | 9-10 | en_US |
dc.citation.spage | 1179 | en_US |
dc.citation.volumeNumber | 27 | en_US |
dc.contributor.author | Kulik, I. O. | en_US |
dc.date.accessioned | 2016-02-08T10:34:44Z | |
dc.date.available | 2016-02-08T10:34:44Z | |
dc.date.issued | 2001 | en_US |
dc.department | Department of Physics | en_US |
dc.description.abstract | We show with a direct numerical analysis that a dilute Bose gas in an external potential - which is choosen for simplicity as a radial parabolic well - undergoes at certain temperature Tc a phase transition to a state supporting macroscopic fraction of particles at the origin of the phase space (r = 0, p = 0). Quantization of particle motion in a well wipes out sharp transition but supports a distribution of radial particle density p(r) peacked at r = 0 (a real-space condensate) as well as the phase-space Wigner distribution density W(r, p) peaked at r = 0 and p = 0 below the crossover temperature Tc* of order of Tc. Fixed-particle-number canonical ensemble which is a combination of the fixed-N condensate part and the fixed-μ excitation part is suggested to resolve the difficulty of large fluctuation of the particle number (δN ∼ N) in the Bose-Einstein condensation problem treated within the orthodox grand canonical ensemble formalism. | en_US |
dc.description.provenance | Made available in DSpace on 2016-02-08T10:34:44Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2001 | en |
dc.identifier.issn | 0132-6414 | |
dc.identifier.uri | http://hdl.handle.net/11693/24812 | |
dc.language.iso | English | en_US |
dc.publisher | Natsional'na Akademiya Nauk Ukrainy | en_US |
dc.source.title | Fizika Nizkikh Temperatur (Kharkov) | en_US |
dc.subject | Condensation | en_US |
dc.subject | Liquefaction of gases | en_US |
dc.subject | Low temperature effects | en_US |
dc.subject | Numerical analysis | en_US |
dc.subject | Particle size analysis | en_US |
dc.subject | Probability distributions | en_US |
dc.subject | Bose gases | en_US |
dc.subject | Gases | en_US |
dc.title | Real-space condensation in a dilute Bose gas at low temperature | en_US |
dc.type | Article | en_US |
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