Results 251 to 260 of about 258,058 (340)
Heat Transfer, EarlyView.ABSTRACT This review explores the impact of gravitational instability on convective heat transfer, integrating existing research results and theoretical models. Gravitational instability is vital in promoting or hindering convective actions in different systems, such as atmospheric events, ocean currents, and industrial processes.
Hossam A. Nabwey +3 more
wiley +1 more source
Quantum gravity and quantum cosmology in a matter reference frame [PDF]
, 2018 Steffen Gielen
openalex
Loop Quantum Gravity and Cosmology: A dynamical introduction [PDF]
, 2011 Martin Bojowald
openalex +1 more source
InfoMat, EarlyView.Perovskite light‐emitting diodes (PeLEDs) have gained prominence in next‐generation photonics. This review comprehensively analyzes the latest progress in perovskite materials, device architectures, operational mechanisms, and optimization strategies for functional layers in PeLEDs, with the aim of providing valuable insights and inspiration for ...
Qianying Lin +5 more
wiley +1 more source
de Sitter Excited State in Heterotic E8×E8${\rm E}_8 \times {\rm E}_8$ Theory
Fortschritte der Physik, EarlyView.Abstract A novel duality sequence is devised to study late‐time cosmology in the heterotic E8×E8${\rm E}_8 \times {\rm E}_8$ setup of Horava and Witten with dynamical walls that are moving towards each other. Remarkably, the dimensionally reduced 4‐dimensional theory does not violate NEC and no bouncing or ekpyrotic phase is observed.
Suddhasattwa Brahma +5 more
wiley +1 more source
Replica Wormholes and Quantum Hair
Fortschritte der Physik, EarlyView.Abstract The recent applications of Euclidean path integrals to the black hole information problem are discussed. In calculations with replica wormholes as the next‐to‐leading order correction to the Gibbons–Hawking saddlepoint, the radiation density matrix approaches a pure state at late times, following the Page curve.
Xavier Calmet, Stephen D. H. Hsu
wiley +1 more source
Universal Property of Quantum Gravity implied by Uniqueness Theorem of Bekenstein-Hawking Entropy
, 2011 Hiromi Saida
openalex +1 more source
The DNA of Calabi–Yau Hypersurfaces
Fortschritte der Physik, EarlyView.Abstract Genetic Algorithms are implemented for triangulations of four‐dimensional reflexive polytopes, which induce Calabi–Yau threefold hypersurfaces via Batyrev's construction. These algorithms are shown to efficiently optimize physical observables such as axion decay constants or axion–photon couplings in string theory compactifications.
Nate MacFadden +2 more
wiley +1 more source
Classical theories of gravity produce entanglement. [PDF]
NatureAziz J, Howl R.
europepmc +1 more source
Liquid‐Solid Triboelectric Nanogenerators in Physical and Chemical Sensors‐A Review
Small, EarlyView.Liquid‐solid triboelectric nanogenerators (L‐S TENGs) have emerged as promising self‐powered sensors that convert liquid–solid interactions into electricity. This review highlights their working principles, recent applications in physical and chemical sensing, and performance improvements.
Xing Wang +4 more
wiley +1 more source