dc.contributor.author | Rogel-Salazar, J. | |
dc.contributor.author | Choi, S. | |
dc.contributor.author | New, G. H. C. | |
dc.contributor.author | Burnett, K. | |
dc.date.accessioned | 2013-06-25T13:46:49Z | |
dc.date.available | 2013-06-25T13:46:49Z | |
dc.date.issued | 2004 | |
dc.identifier.citation | Rogel-Salazar , J , Choi , S , New , G H C & Burnett , K 2004 , ' Methods of quantum field theory for trapped Bose–Einstein condensates ' , Journal of Optics B: Quantum and Semiclassical Optics , vol. 6 , no. 9 , pp. R33-R59 . https://doi.org/10.1088/1464-4266/6/9/R01 | |
dc.identifier.issn | 1464-4266 | |
dc.identifier.other | PURE: 633066 | |
dc.identifier.other | PURE UUID: f6a876c9-32fb-4a25-9182-2a2c76563c45 | |
dc.identifier.other | Bibtex: urn:a4ae7a294d959c0882fe88dcdce9cc0c | |
dc.identifier.other | Scopus: 4644330581 | |
dc.identifier.uri | http://hdl.handle.net/2299/10928 | |
dc.description.abstract | In this tutorial we present an introduction to some theoretical methods of quantum field theory applied to the description of a trapped Bose–Einstein condensate. First of all, we give a brief account of the main characteristics of the phenomenon of condensation and present the many-body Hamiltonian of the system. We outline some of the most important approaches used in the characterization of a condensed Bose gas, including the mean-field theory and the Hartree–Fock–Bogoliubov method. Finally we illustrate the use of these techniques addressing some important issues in quantum atom optics. We characterize the quantum state of a Bose–Einstein condensate (BEC) at zero temperature. We also describe a process of Beliaev coupling between quasiparticles using a method that includes terms beyond the usual Bogoliubov approach. | en |
dc.language.iso | eng | |
dc.relation.ispartof | Journal of Optics B: Quantum and Semiclassical Optics | |
dc.subject | article are in colour,atom lasers,bec,bose,bose einstein condensation,entanglement,matter waves,nite temperature eld,nonlinear optics,only in the electronic,parametric down conversion,quasiparticle methods,some gures in this,squeezing,theory,theory of quantized elds | |
dc.title | Methods of quantum field theory for trapped Bose–Einstein condensates | en |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | https://doi.org/10.1088/1464-4266/6/9/R01 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |