Ground-state energy and excitation spectrum of the Lieb-Liniger model : accurate analytical results and conjectures about the exact solution
We study the ground-state properties and excitation spectrum of the Lieb-Liniger model, i.e. the one-dimensional Bose gas with repulsive contact interactions. We solve the Bethe-Ansatz equations in the thermodynamic limit by using an analytic method based on a series expansion on orthogonal polyn...
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| Format: | Article |
| Language: | English |
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SciPost
2017-07-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.3.1.003 |