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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We present algorithms for the ab-initio determination of the temperature($T$) dependence of the mutual-friction coefficients $\alpha$ and $\alpha'$ andthe normal-fluid density $\rho_{\rm n}$ in the two-dimensional (2D)Galerkin-truncated Gross-Pitaevskii system. Our algorithms enable us todetermine $\alpha(T)$, even though fluctuations in 2D are considerably largerthan they are in 3D. We also examine the implications of our measurements of$\alpha'(T)$ for the Iordanskii force, whose existence is often questioned.

Superfluid Mutual-friction Coefficients from Vortex Dynamics in the Two-dimensional Galerkin-truncated Gross-Pitaevskii Equation