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 calculate the boundary correlation function of fixed-to-free boundarycondition changing operators in the square-lattice Ising model. The correlationfunction is expressed in four different ways using $2\times2$ block Toeplitzdeterminants. We show that these can be transformed into a scalar Toeplitzdeterminant when the size of the matrix is even. To know the asymptoticbehavior of the correlation function at large distance we calculate theasymptotic behavior of this scalar Toeplitz determinant using the Szeg\"o'stheorem and the Fisher-Hartwig theorem. At the critical temperature we confirmthe power-law behavior of the correlation function predicted by conformal fieldtheory

The boundary correlation function of fixed-to-free boundary-condition-changing operators in a square-lattice Ising model