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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

We show that in heterotic string theory compactified on a six dimensionaltorus, the lower bound (Bogomol'nyi bound) on the dyon mass is invariant underthe SL(2,Z) transformation that interchanges strong and weak coupling limits ofthe theory. Elementary string excitations are also shown to satisfy this lowerbound. Finally, we identify specific monopole solutions that are related viathe strong-weak coupling duality transformation to some of the elementaryparticles saturating the Bogomol'nyi bound, and these monopoles are shown tohave the same mass and degeneracy of states as the corresponding elementaryparticles.Comment: 16 pages, phyzzx.tex, NSF-ITP-93-29 (Minor additions have been made  in the set of eqs.(4).

MAGNETIC MONOPOLES, BOGOMOL’NYI BOUND AND SL(2, ℤ) INVARIANCE IN STRING THEORY