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

We use the Metropolis algorithm to study the stability of superfluid flow ina model system, namely the two-dimensional planar XY model. Flow properties areexamined by studying the behaviour of the system in meta-stable ``twisted''states. We demonstrate the stability of superfluidity in this model and wediscuss the Meissner effect and velocity quantization. We also study thecritical velocity and dissipation by vortex creation and rotational flow andtheir dependence on the geometry of the system. An expression for the averagesuperfluid velocity as a function of time, ${\bar v}_s(t)$, is obtained andcompared with experimental results.Comment: 11 pages, 14 figure

physical review. b, condensed matter and materials physics

Metastable states in the planar two-dimensional<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>X</mml:mi><mml:mi>Y</mml:mi></mml:mrow></mml:math>model and dissipation in superfluid flow

Metastable states in the planar two-dimensionalXYmodel and dissipation in superfluid flow