Quantum Borderlines -- Fluctuation Energies in Ultracold Bose Gases
Fuente:
arXiv
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| Autore principale: | |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
| Accesso online: | |
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| _version_ | 1866913850562969600 |
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| author | Henkel, Carsten |
| author_facet | Henkel, Carsten |
| contents | Ultracold Bose gases are many-body systems with well-defined particle interactions that may serve as models for interacting quantum fields. The impact of virtual excitations is studied in the spatial transition zone created by a soft confinement potential that separates a degenerate ideal gas from a dense quasi-condensate. We compute within Bogoliubov theory the contribution of quasi-particles to the surface energy at zero temperature. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_21908 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quantum Borderlines -- Fluctuation Energies in Ultracold Bose Gases Henkel, Carsten Quantum Gases Ultracold Bose gases are many-body systems with well-defined particle interactions that may serve as models for interacting quantum fields. The impact of virtual excitations is studied in the spatial transition zone created by a soft confinement potential that separates a degenerate ideal gas from a dense quasi-condensate. We compute within Bogoliubov theory the contribution of quasi-particles to the surface energy at zero temperature. |
| title | Quantum Borderlines -- Fluctuation Energies in Ultracold Bose Gases |
| topic | Quantum Gases |
| url | https://arxiv.org/abs/2503.21908 |