Drude Weight for the Lieb-Liniger Bose Gas

Based on the method of hydrodynamic projections we derive a concise formula for the Drude weight of the repulsive Lieb-Liniger $\delta$-Bose gas. Our formula contains only quantities which are obtainable from the thermodynamic Bethe ansatz. The Drude weight is an infinite-dimensional matrix, or b...

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Bibliographic Details
Main Author: Benjamin Doyon, Herbert Spohn
Format: Article
Language:English
Published: SciPost 2017-12-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.3.6.039