Results 51 to 60 of about 5,303 (156)
Higher-derivative heterotic Double Field Theory and classical double copy
Journal of High Energy Physics, 2021 The generalized Kerr-Schild ansatz (GKSA) is a powerful tool for constructing exact solutions in Double Field Theory (DFT). In this paper we focus in the heterotic formulation of DFT, considering up to four-derivative terms in the action principle, while
Eric Lescano, Jesús A. Rodríguez
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Calabi‐Yau Manifolds, Hermitian Yang‐Mills Instantons, and Mirror Symmetry
Advances in High Energy Physics, Volume 2017, Issue 1, 2017., 2017 We address the issue of why Calabi‐Yau manifolds exist with a mirror pair. We observe that the irreducible spinor representation of the Lorentz group Spin(6) requires us to consider the vector spaces of two forms and four forms on an equal footing. The doubling of the two‐form vector space due to the Hodge duality doubles the variety of six‐dimensional
Hyun Seok Yang +2 more
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Subleading soft theorem for multiple soft gravitons
Journal of High Energy Physics, 2017 We derive the subleading soft graviton theorem in a generic quantum theory of gravity for arbitrary number of soft external gravitons and arbitrary number of finite energy external states carrying arbitrary mass and spin.
Subhroneel Chakrabarti +4 more
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Model-building for fractional superstrings [PDF]
, 1991 We investigate heterotic string-type model-building for the recently proposed fractional superstring theories. We concentrate on the cases with critical space-time dimensions four and six, and find that a correspondence can be drawn between the new ...
K. Dienes, S. Tye
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Fortschritte der Physik, Volume 73, Issue 9-10, October 2025.Abstract The unification of conformal and fuzzy gravities with internal interactions is based on the facts that i) the tangent group of a curved manifold and the manifold itself do not necessarily have the same dimensions and ii) both gravitational theories considered here have been formulated in a gauge theoretic way.
Gregory Patellis +3 more
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Advances in High Energy Physics, Volume 2013, Issue 1, 2013., 2013 The 4D Kerr geometry displays many wonderful relations with quantum world and, in particular, with superstring theory. The lightlike structure of fields near the Kerr singular ring is similar to the structure of Sen solution for a closed heterotic string.
Alexander Burinskii, P. Bussey
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Heterotic sigma models on T 8 and the Borcherds automorphic form Φ12
Journal of High Energy Physics, 2017 We consider the spectrum of BPS states of the heterotic sigma model with (0, 8) supersymmetry and T 8 target, as well as its second-quantized counterpart.
Sarah M. Harrison +4 more
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Worldsheet description of a massive type IIA superstring in 10D
Journal of High Energy Physics, 2023 We construct, following [1, 2], a massive M2-brane (supermembrane) as the limit of a genus two M2-brane that becomes a twice punctured Riemann surface with particular boundary conditions on the fields defined on the punctures.
M. P. Garcia del Moral +2 more
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Negative Norms in Quantized Strings as Dark Energy Density of the Cosmos
, 2016 The present short paper is concerned with accurate explanation as well as quantification of the so called missing dark energy of the cosmos. It was always one of the main objectives of any successful general theory of high energy particle physics and ...
M. Naschie
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Dark Dimension With (Little) Strings Attached
Fortschritte der Physik, Volume 73, Issue 4, April 2025.Abstract A relation between dark energy and the scale of new physics in weakly coupled string theory is motivated. This mixing between infrared and ultraviolet physics leads to a unique corner for real‐world phenomenology: barring fine‐tunings, the authors are naturally led to the “dark dimension” scenario, a single mesoscopic extra dimension of micron
Ivano Basile, Dieter Lüst
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