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

Three types of surface tensions can be defined for lipid membranes: theinternal tension, $\sigma$, conjugated to the real membrane area in theHamiltonian, the mechanical frame tension, $\tau$, conjugated to the projectedarea, and the "fluctuation tension", $r$, obtained from the fluctuationspectrum of the membrane height.  We investigate these surface tensions by means of a Monge gauge lattice MonteCarlo simulation involving the exact, nonlinear, Helfrich Hamiltonian and ameasure correction for excess entropy of the Monge gauge. Our results for therelation between $\sigma$ and $\tau$ agrees well with the theoreticalprediction of [J.-B. Fournier and C. Barbetta, Phys. Rev. Lett., 2008, 100,078103] based on a Gaussian approximation. This provides a valuable knowledgeof~$\tau$ in the standard Gaussian models where the tension is controlled by$\sigma$. However, contrary to the conjecture in the above paper, we find that$r$ exhibits no significant difference from $\tau$ over more than five decadesof tension. Our results appear to be valid in the thermodynamic limit and arerobust to changing the ensemble in which the membrane area is controlled.

Monte Carlo study of the frame, fluctuation and internal tensions of fluctuating membranes with fixed area