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June 20, 2026Journal of High Energy PhysicsOpen Access

On the trivalent junction of three non-tachyonic heterotic string theories

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Authors

YTYuji TachikawaThe University of Tokyo

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Implication

This theoretical paper discusses a method to join three non-tachyonic heterotic string theories at a junction, indicating new insights into string theory construction.

Key Points

The aim is to explore how three non-tachyonic ten-dimensional heterotic string theories can be connected at a nine-dimensional junction.
Constructed a two-dimensional non-conformal supersymmetric quantum field theory with three asymptotic ends
Analyzed connections using worldsheet theories of the E 8 × E 8 and SO(32) string theories
Included modifications involving ℤ 2 -symmetric theories and orbifolds.
Demonstrated the theoretical possibility of joining three distinct heterotic string theories at a junction.
Outlined a framework that can be generalized to include various ℤ 2 -symmetric theories.
Provided insights into the implications of such junctions for understanding string theory constructions.

Cite This Study

Yuji Tachikawa (2026) studied this question.

synapsesocial.com/papers/6a3632a0db0793dc1a53937c https://doi.org/10.1007/jhep06(2026)194

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