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Solitonski snovni valovi v Bose-Einsteinovih kondenzatih [Elektronski vir]Arh, Tina, 1995-Članek obravnava solitonske snovne valove v Bose-Einsteinovih kondenzatih. Na začetku teoretično opiše obnšanje kondenzata z nelinearno enačbo Gross-Pitaevskega, ki vsebuje približek povprečnega ... polja, in razišče pogoje, pod katerimi je kondenzat nestabilen. V enodimenzionalni limiti pokaže soliton kot točno rešitev omenjene enačbe. V eksperimentih s hladnimi atomi, kjer geometrija ni zares enodimenzionalna in nastopajo še zunanji potenciali, se osnovne lastnosti solitonov spremenijo, pride pa tudi do povsem novih pojavov, zaradi česar se uporablja besedna zveza solitonski val namesto soliton. Drugi del članka se osredotoči na nastajanje posameznih in večkratnih stabilnih solitonskih valov v eksperimentih ter njihove trke. V zaključku so omenjeni še nekateri primeri uporabe pojava.Source: Matrika [Elektronski vir] : izbrane teme sodobne fizike in matematike. - ISSN 2385-8567 (Letn. 5, št. 2, 2018, 11 str.)Type of material - e-articlePublish date - 2018Language - englishCOBISS.SI-ID - 3245668
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| Arh, Tina, 1995- | 53450 |
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