Results 81 to 90 of about 166,017,541 (302)
SPACETIME OR QUANTUM PARTICLES: THE ONTOLOGY OF QUANTUM GRAVITY? [PDF]
, 1996 The domains of quantum theory and general relativity overlap in situations where quantum mechanical effects cannot be ignored. In order to deal with this overlap of theoretical domains, there has been a tendency to apply the rules of quantum field theory
Peter J. Riggs +2 more
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Advanced Materials, EarlyView.Water harvesting, radiative cooling, and interfacial solar evaporation are fundamentally governed by coupled heat, mass, and light transport processes. These processes are mediated by pore architecture, including pore size, connectivity, and hierarchical organization.
Dejan J. Trajkovski +5 more
wiley +1 more source
Geometrizing gravity and vice-versa: the force of a formulation [PDF]
, 2009 It is well-known that Newton’s theory of gravity, commonly held to describe a gravitational force, can be recast in a geometrical form: Newton- Cartan theory.
Knox, Eleanor
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Advanced Materials Technologies, EarlyView.A patient‐specific, imaging‐guided aid enables precise and reproducible drug delivery to the inner ear. By guiding therapeutic agents directly to the round window niche, this approach reduces variability in drug localization, improves delivery safety, and addresses a critical bottleneck in inner ear therapy, offering a scalable strategy for precision ...
Yanjing Luo +4 more
wiley +1 more source
A2: Mathematical relativity and other progress in classical gravity theory—a session report [PDF]
General Relativity and Gravitation, 2014 13 pages, some minor ...
Chrusciel, Piotr T., Paetz, Tim-Torben
openaire +4 more sources
Presentism and Quantum Gravity [PDF]
, 2001 There is a philosophical tradition of arguing against presentism, the thesis that only presently existing things exist, on the basis of its incompatibility with fundamental physics.
Monton, Bradley
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Advanced Materials Technologies, EarlyView.This work establishes Bi2MoO6/rGO heterostructures as a mechanism‐guided platform for high‐performance room‐temperature ethanol gas detection by showing that modest adsorption, in conjunction with dynamic interfacial band modulation, enables rapid charge‐transfer.
Sagarika Panda +7 more
wiley +1 more source
Stable causality and microcausality for Drummond–Hathrell photons
Journal of High Energy PhysicsLocal superluminal photon propagation arises at O α / m e 2 $$ \mathcal{O}\left(\alpha /{m}_e^2\right) $$ in the Drummond Hathrell (DH) effective action obtained by integrating out the electron in QED coupled to gravity.
Madhukar Deb, Jay Desai, Diptimoy Ghosh
doaj +1 more source
A Classical Field Theory of Gravity and Electromagnetism
Journal of Modern Physics, 2014 A classical field theory of gravity and electromagnetism is developed. The starting point of the theory is the Maxwell equations which are directly tied to the Riemann-Christoffel curvature tensor. This is done through the derivatives of the Maxwell tensor which are equated to a vector field contracted with the ...
openaire +2 more sources
Universal field equations for metric-affine theories of gravity
, 2015 We show that almost all metric-affine theories of gravity yield Einstein field equations with a non-null cosmological constant Lambda. Under certain circumstances and for any dimension, it is also possible to incorporate a Weyl vector field W-mu and ...
Ujevic, M, Tapia, V
core +1 more source