Results 31 to 40 of about 32,512 (177)
The convex hull swampland distance conjecture and bounds on non-geodesics
Journal of High Energy Physics, 2021 The Swampland Distance Conjecture (SDC) restricts the geodesic distances that scalars can traverse in effective field theories as they approach points at infinite distance in moduli space.
José Calderón-Infante +2 more
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Charge completeness and the massless charge lattice in F-theory models of supergravity
Journal of High Energy Physics, 2021 We prove that, for every 6D supergravity theory that has an F-theory description, the property of charge completeness for the connected component of the gauge group (meaning that all charges in the corresponding charge lattice are realized by massive or ...
David R. Morrison, Washington Taylor
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Quaternionic manifolds for type II superstring vacua of Calabi-Yau spaces [PDF]
, 1990 S. Ferrara, S. Sabharwal
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Analytics of type IIB flux vacua and their mass spectra
Journal of High Energy Physics, 2023 We analyze the tree-level potential of type IIB flux compactifications in warped Calabi-Yau orientifolds, in regions of weak coupling and moderately large complex structure.
Thibaut Coudarchet +3 more
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Type IIB flux compactifications with h 1,1 = 0
Journal of High Energy Physics, 2022 We revisit flux compactifications of type IIB string theory on ‘spaces’ dual to rigid Calabi-Yau manifolds. This rather unexplored part of the string landscapes harbors many interesting four-dimensional solutions, namely supersymmetric N $$ \mathcal{N} $$
Jacob Bardzell +4 more
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On the Role of Torsion and Higher Forms in Off‐Shell Supergravity
Fortschritte der Physik, Volume 71, Issue 8-9, September 2023., 2023 Abstract The presence of a nonvanishing totally antisymmetric (super)torsion, equivalent to an axial vector, and higher forms in the “new minimal” and “old minimal” off‐shell formulations of N=1$\mathcal {N}=1$, D=4$D=4$ supergravity is elaborated. The geometric superspace approach and study both the geometric Lagrangian and the off‐shell closure of ...
Lucrezia Ravera
wiley +1 more source
Enhancement of Out‐of‐Plane Spin–Orbit Torque by Interfacial Modification
Advanced Materials, Volume 35, Issue 12, March 23, 2023., 2023 The oxidation in CuPt/ferromagnet interface is found to be able to enhance the out‐of‐plane (OOP) torque and associated spin–orbit torque (SOT) switching efficiency with remaining threefold rotational symmetry. The enhancement is independent of the device shapes, magnetic materials, or magnetization easy axis.
Tieyang Zhao +11 more
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Mass Hierarchies and Quantum Gravity Constraints in DKMM‐refined KKLT
Fortschritte der Physik, Volume 71, Issue 1, January 2023., 2023 Abstract We carefully revisit the mass hierarchies for the KKLT scenario with an uplift term from an anti D3‐brane in a strongly warped throat. First, we derive the bound resulting from what is usually termed “the throat fitting into the bulk” directly from the Klebanov‐Strassler geometry.
Ralph Blumenhagen +2 more
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Fake supersymmetry with tadpole potentials
Journal of High Energy Physics, 2023 We study tadpole potentials of non-supersymmetric strings, resorting to a first-order formalism known in the literature as fake supersymmetry. We present a detailed analysis for vacua with only gravity and the dilaton, displaying the obstructions that ...
Salvatore Raucci
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Homotopy Transfer and Effective Field Theory II: Strings and Double Field Theory
Fortschritte der Physik, Volume 70, Issue 2-3, March 2022., 2022 Abstract We continue our study of effective field theory via homotopy transfer of L∞$L_\infty$‐algebras, and apply it to tree‐level non‐Wilsonian effective actions of the kind discussed by Sen in which the modes integrated out are comparable in mass to the modes that are kept. We focus on the construction of effective actions for string states at fixed
Alex S. Arvanitakis +3 more
wiley +1 more source