Abstract
We establish the Lee–Huang–Yang formula for the ground state energy of a dilute Bose gas for a broad class of repulsive pair-interactions in 3D as a lower bound. Our result is valid in an appropriate parameter regime of soft potentials and confirms that the Bogoliubov approximation captures the right second-order correction to the ground state energy.
Originalsprog | Engelsk |
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Tidsskrift | Annales Henri Poincare |
Vol/bind | 21 |
Udgave nummer | 2 |
Sider (fra-til) | 571-626 |
ISSN | 1424-0637 |
DOI | |
Status | Udgivet - 2020 |