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Spin cobordism and the gauge group of type I/heterotic string theory
Published 2025-01-01“…In this work we compute the spin cobordism groups of the classifying space of Spin(32)/ℤ2 relevant to describing type I/heterotic string theory and explore their (shared) non-perturbative sector. …”
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The decoupling of moduli about the standard embedding
Published 2025-01-01“…Abstract We study the cohomology of an elliptic differential complex arising from the infinitesimal moduli of heterotic string theory in the supergravity approximation. …”
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A heterotic Kähler gravity and the distance conjecture
Published 2025-01-01“…We investigate properties of this new holomorphic theory, and in particular connections to the swampland distance conjecture in the context of heterotic string theory. In the process, we define a new type of symplectic cohomology theory, where the background complex structure Beltrami differential plays the role of the symplectic form.…”
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Computation of quark masses from string theory
Published 2025-01-01“…We present a numerical computation, based on neural network techniques, of the physical Yukawa couplings in a heterotic string theory compactification on a smooth Calabi-Yau threefold with non-standard embedding. …”
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Investigating 9d/8d non-supersymmetric branes and theories from supersymmetric heterotic strings
Published 2025-01-01“…Abstract We consider heterotic string theories in nine and eight dimensions. We identify the disconnected part of the spacetime gauge group by studying the outer automorphism of the charge lattices. …”
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Niemeier Lattices in the Free Fermionic Heterotic–String Formulation
Published 2017-01-01“…The two-dimensional heterotic–string theories are in turn related to the so-called moonshine symmetries that underlie the two-dimensional compactifications. …”
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