Мiкроструктура He II за наявностi границь
We have studied the microstructure of a system of interacting Bose particles under zero boundary conditions and have found two possible orderings. One ordering is traditional and is characterized by the Bogolyubov dispersion law E(k) ≈ √︂((︁h^2*k^2/2m)^2) + qnv3(k) ~ (h^2*...
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| Datum: | 2018 |
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| 1. Verfasser: | |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Publishing house "Academperiodika"
2018
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| Online Zugang: | https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018421 |
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| Назва журналу: | Ukrainian Journal of Physics |
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Ukrainian Journal of Physics| Zusammenfassung: | We have studied the microstructure of a system of interacting Bose particles under zero boundary conditions and have found two possible orderings. One ordering is traditional and is characterized by the Bogolyubov dispersion law E(k) ≈ √︂((︁h^2*k^2/2m)^2) + qnv3(k) ~ (h^2*k^2/m) (q = 1) at a weak interaction. The second one is new and is characterized by the same dispersion law, but with q = 2^−d, where d is the number of noncyclic coordinates. At a weak interaction, the ground-state energy is less for the new solution. The boundaries affect the bulk microstructure due to the difference of the topologies of closed and open systems. |
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