On the ground state energy of the delta-function Bose gas
Open Access Publications from the University of California

## On the ground state energy of the delta-function Bose gas

• Author(s): Tracy, Craig A.
• Widom, Harold
• et al.

## Published Web Location

https://arxiv.org/pdf/1601.04677.pdf
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Abstract

The weak coupling asymptotics, to order $(c/\rho)^2$, of the ground state energy of the delta-function Bose gasmis derived. Here $2c\ge 0$ is the delta-function potential amplitude and $\rho$ the density of the gas in the thermodynamic limit. The analysis uses the electrostatic interpretation of the Lieb-Liniger integral equation.

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