English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Luttinger liquid theory of one-dimensional quantum systems ignoresexponentially weak backscattering of particles. This endows Luttinger liquidswith superfluid properties. The corresponding two-fluid hydrodynamicdescription available at present applies only to Galilean-invariant systems,whereas most experimental realizations of one-dimensional quantum liquids lackGalilean invariance. Here we develop the two-fluid theory of such quantumliquids. In the low-frequency limit the theory reduces to single-fluidhydrodynamics. However, the absence of Galilean invariance brings about threenew transport coefficients. We obtain expressions for these coefficients interms of the backscattering rate.

Two-fluid dynamics of one-dimensional quantum liquids in the absence of Galilean invariance