Results 71 to 80 of about 683 (126)
Band Tailoring Enabled Perovskite Devices for X‐Ray to Near‐Infrared Photodetection
Advanced Science, Volume 12, Issue 9, March 6, 2025.Perovskite‐based photodetectors are improved for wide‐spectrum detection X‐rays to near‐infrared using a type‐II heterojunction with tellurium. This design reduces dark current noise and enhances sensitivity, with a scalable sensor array showing promise for imaging applications.
Yi‐Chu He +14 more
wiley +1 more source
Journal of High Energy Physics, 2020 We study non-perturbative instabilities of AdS spacetime in General Relativity with a cosmological constant in arbitrary dimensions. In this simple setup we explicitly construct a class of gravitational instantons generalizing Witten’s bubble of nothing.
Giuseppe Dibitetto +2 more
doaj +1 more source
Fortschritte der Physik, Volume 73, Issue 1-2, February 2025.Abstract S. Gukov and C. Vafa proposed a characterization of rational N=(1,1)$N=(1,1)$ superconformal field theories (SCFTs) in 1+1$1+1$ dimensions with Ricci‐flat Kähler target spaces in terms of the Hodge structure of the target space, extending an earlier observation by G. Moore.
Abhiram Kidambi +2 more
wiley +1 more source
Moduli stabilization in type IIB orientifolds at h2,1 = 50
Journal of High Energy Physics, 2023 We study moduli stabilization in Calabi-Yau orientifold compactifications of type IIB string theory with O3- and O7-planes. We consider a Calabi-Yau three-fold with Hodge number h 2,1 = 50 and stabilize all axio-dilaton and complex-structure moduli by ...
Konstantinos Tsagkaris, Erik Plauschinn
doaj +1 more source
T‐Symmetry in String Geometry Theory
Advances in High Energy Physics, Volume 2025, Issue 1, 2025.String geometry theory is one of the candidates of nonperturbative formulation of string theory. In this paper, we have shown that dimensionally reduced string geometry theories have what we call T‐symmetry. In the case of the dimensional reduction in space‐like directions, the T‐symmetry transformation gives the T‐dual transformation between the Type ...
Matsuo Sato +2 more
wiley +1 more source
Gravitoelectric effect in the condensed magnetic sea
IET Quantum Communication, Volume 5, Issue 2, Page 185-195, June 2024.The Soon Joe generator produced a certain amount of electricity in the dark stationary state. Gravity or gravitational wave can induce the magnetic seas because gravitons captured in the magnetic seas should induce the gravitoelectric effect without the photoelectric effects. As a result, we formulated a new law for magnetism on Earth. Abstract Trapped
Jong hoon Lee
wiley +1 more source
Octonionic Magical Supergravity, Niemeier Lattices, and Exceptional & Hilbert Modular Forms
Fortschritte der Physik, Volume 72, Issue 2, February 2024.Abstract The quantum degeneracies of Bogomolny‐Prasad‐Sommerfield (BPS) black holes of octonionic magical supergravity in five dimensions are studied. Quantum degeneracy is defined purely number theoretically as the number of distinct states in charge space with a given set of invariant labels.
Murat Günaydin, Abhiram Kidambi
wiley +1 more source
Scaling limits of dS vacua and the swampland
Journal of High Energy Physics, 2019 We discuss the properties of massive type IIA flux compactifications. In particular, we investigate in which case one can obtain dS vacua at large volume and small coupling.
Andreas Banlaki +3 more
doaj +1 more source
New de Sitter solutions of 10d type IIB supergravity
Journal of High Energy Physics, 2020 We find and study 17 new de Sitter solutions of ten-dimensional (10d) type IIB supergravity with intersecting D 5-branes and orientifold O 5-planes, as well as a new Minkowski one.
David Andriot +2 more
doaj +1 more source
Systematics of type IIB moduli stabilisation with odd axions
Journal of High Energy Physics, 2022 Moduli stabilisation in superstring compactifications on Calabi-Yau orientifolds remains a key challenge in the search for realistic string vacua.
Michele Cicoli +2 more
doaj +1 more source