Beyond-mean-field analysis of the Townes soliton and its breathing mode
By using the Bogoliubov perturbation theory we describe the self-bound ground state and excited breathing states of $N$ two-dimensional bosons with zero-range attractive interactions. Our results for the ground state energy $B_N$ and size $R_N$ improve previously known large-$N$ asymptotes and we be...
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| Format: | Article |
| Language: | English |
| Published: |
SciPost
2025-08-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.19.2.037 |
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