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 study the finite-temperature expectation values of exponential fields inthe sine-Gordon model. Using finite-volume regularization, we give alow-temperature expansion of such quantities in terms of the connected diagonalmatrix elements, for which we provide explicit formulas. For special values ofthe exponent, computations by other methods are available and used to validateour findings. Our results can also be interpreted as a further support for aprevious conjecture about the connection between finite- and infinite-volumeform factors valid up to terms exponentially decaying in the volume.

Finite temperature one-point functions in non-diagonal integrable field theories: the sine-Gordon model