Results 91 to 100 of about 955 (184)

Nuclear magnetic resonance properties of silica glass under pressure up to 2 Mbar: A view from ab initio calculations

Journal of the American Ceramic Society, Volume 108, Issue 7, July 2025.
Abstract The structures of silica (SiO2) glasses at high pressure provide insight into the thermo‐mechanical properties of chemically complex amorphous oxides upon stress, compression, and indentation. While much of our knowledge on glass structures has been garnered from high‐resolution solid‐state nuclear magnetic resonance (NMR) by probing the ...
Jae‐Hyeon Parq, Yoo Soo Yi, Sang‐Mook Lee, Jaejun Yu, Sung Keun Lee   +4 more
wiley   +1 more source

On scale-separated supersymmetric $$\hbox {AdS}_2$$ AdS 2 flux vacua

European Physical Journal C: Particles and Fields
We argue that scale-separated $$\hbox {AdS}_2$$ AdS 2 vacua with at least two preserved supercharges cannot arise from flux compactifications in a regime of computational control.
Niccolò Cribiori, Fotis Farakos, Nikolaos Liatsos   +2 more
doaj   +1 more source

W0_sample = np.random.normal(0,1)?

Physics Letters B
In this note, we explore the distribution of vacuum expectation values of the superpotential W0 in explicit Type IIB flux compactifications. We show that the distribution can be approximated universally across geometries by a two-dimensional Gaussian ...
J. Ebelt, S. Krippendorf, A. Schachner
doaj   +1 more source

Structure of hyperbolic polynomial automorphisms of C2${\mathbb {C}^2}$ with disconnected Julia sets

Proceedings of the London Mathematical Society, Volume 130, Issue 6, June 2025.
Abstract For a hyperbolic polynomial automorphism of C2$\mathbb {C}^2$ with a disconnected Julia set, and under a mild dissipativity condition, we give a topological description of the components of the Julia set. Namely, there are finitely many “quasi‐solenoids” that govern the asymptotic behavior of the orbits of all nontrivial components.
Romain Dujardin, Mikhail Lyubich
wiley   +1 more source

C2 generalization of the van Diejen model from the minimal (D5,D5) conformal matter. [PDF]

Lett Math Phys, 2023
Nazzal B, Nedelin A.
europepmc   +1 more source

Topological data analysis for the string landscape

Journal of High Energy Physics, 2019
Persistent homology computes the multiscale topology of a data set by using a sequence of discrete complexes. In this paper, we propose that persistent homology may be a useful tool for studying the structure of the landscape of string vacua. As a scaled-
Alex Cole, Gary Shiu
doaj   +1 more source

Playing With the Index of M-Theory. [PDF]

Commun Math Phys, 2022
Del Zotto M, Nekrasov N, Piazzalunga N, Zabzine M.   +3 more
europepmc   +1 more source

Coexisting flux string vacua from numerical Kähler moduli stabilisation

Journal of High Energy Physics
We present a comprehensive study of Kähler moduli stabilisation in Type IIB flux compactifications, combining advanced numerical techniques with analytical methods.
Shehu AbdusSalam, Christopher Hughes, Fernando Quevedo, Andreas Schachner   +3 more
doaj   +1 more source

Symmetry TFTs from String Theory. [PDF]

Commun Math Phys, 2023
Apruzzi F, Bonetti F, García Etxebarria I, Hosseini SS, Schäfer-Nameki S.   +4 more
europepmc   +1 more source

Anomaly, fluxes and (2,0) heterotic-string compactifications [PDF]

, 2003
Joe Gillard, George Papadopoulos, Dimitrios Tsimpis   +2 more
openalex   +1 more source