Results 81 to 90 of about 49,504 (245)
Classical-quantum hybrid canonical dynamics and its difficulties with special and general relativity [PDF]
Physical Review DWe discuss the Hamiltonian hybrid coupling between a classical and a quantum subsystem. If applicable to classical gravity coupled to quantized matter, this hybrid theory might realize a captivating `postquantum' alternative to full quantum-gravity.
Lajos Di'osi
semanticscholar +1 more source
Fortschritte der Physik, Volume 74, Issue 1, January 2026.Abstract The propagation of a massive scalar field and a massless Dirac field in the geometry of a dilaton–de Sitter black hole is investigated. Starting from the covariant perturbation equations, the corresponding effective potentials are presented and their dependence on the dilaton charge, field mass, and cosmological constant is analyzed. Using the
Bekir Can Lütfüoğlu
wiley +1 more source
Journal of Mathematics, Volume 2026, Issue 1, 2026.A new negative‐order form of the (3 + 1)‐dimensional Calogero–Bogoyavlenskii–Schiff equation is examined in this investigation. This equation plays an important role in accurately describing the thermodynamic properties of mixtures, particularly in chemical engineering applications.
Ulviye Demirbilek +6 more
wiley +1 more source
Adsorption and Separation by Flexible MOFs
Advanced Materials, Volume 37, Issue 52, December 29, 2025.Flexible metal–organic frameworks (MOFs) present significant potential for gas storage and separation due to their structural dynamic. This review explores the rationale behind the flexible MOFs' enhanced working capacity and separation factors. It also addresses key challenges, including phase transition kinetics, crystal robustness, cycling, shaping,
Irena Senkovska +4 more
wiley +1 more source
Annalen der Physik, Volume 537, Issue 12, December 2025.A set of particle representations, familiar from the Standard Model, collectively form a superalgebra. Those representations mirroring the behaviour of the Standard Model's gauge bosons, and three generations of fermions, are each included in this algebra, with exception only to those representations involving the top quark.
N. Furey
wiley +1 more source
Relational dynamics and Page-Wootters formalism in group field theory [PDF]
QuantumGroup field theory posits that spacetime is emergent and is hence defined without any background notion of space or time; dynamical questions are formulated in relational terms, in particular using (scalar) matter degrees of freedom as time.
Andrea Calcinari, Steffen Gielen
doaj +1 more source
Schrödinger from Wheeler-DeWitt: The Issues of Time and Inner Product in Canonical Quantum Gravity [PDF]
, 2022 Ali Kaya
openalex +1 more source
The Once and Future Hydrology Is Whole Earth Hydrology
Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.Abstract We here argue for a new paradigm to advance pursuit of truth in global freshwater science. Our proposed Whole Earth Hydrology is hydrology that is explicitly empirical and discovery‐based, grounded in primary data, detailed at scale, and incorporates humans as essential.
Colin J. Gleason, Casey M. Brown
wiley +1 more source
The Space of Connections as the Arena for (Quantum) Gravity
Symmetry, Integrability and Geometry: Methods and Applications, 2011 We review some properties of the space of connections as the natural arena for canonical (quantum) gravity, and compare to the case of the superspace of 3-metrics.
Steffen Gielen
doaj +1 more source