Results 101 to 110 of about 707,832 (374)
DeWitt boundary condition is consistent in Hořava-Lifshitz quantum gravity
Physics Letters B, 2022 In quantum cosmology the DeWitt boundary condition is a proposal to set the wave function of the universe to vanish at the classical big-bang singularity.
Hiroki Matsui +2 more
doaj +1 more source
What Is a Singularity in Geometrized Newtonian Gravitation? [PDF]
Philosophy of Science, 2014 I discuss singular space-times in the context of the geometrized formulation of Newtonian gravitation. I argue first that geodesic incompleteness is a natural criterion for when a model of geometrized Newtonian gravitation is singular, and then I show that singularities in this sense arise naturally in classical physics by stating and proving a ...
openaire +4 more sources
Non-marginally bound inhomogeneous dust collapse in higher dimensional space-time [PDF]
, 2002 We investigate the occurrence and nature of a naked singularity in the gravitational collapse of an inhomogeneous dust cloud described by a self-similar higher dimensional Tolman-Bondi space-time.
A. BANERJEE, S. G. GHOSH, Tipler F. J.
core +2 more sources
Advanced Functional Materials, EarlyView.Shellular materials form spontaneously by dip coating the primitive triply periodic minimal surface (TPMS) wireframe in an aqueous solution of lyotropic liquid crystalline graphene oxide (GO) nanosheets mixed with polymers. Regulated by surface tension, GO nanosheets align on the polymer soap film as the stress builds up during drying.
Yinding Chi +9 more
wiley +1 more source
DeWitt Boundary Condition in One-Loop Quantum Cosmology
Universe, 2023 DeWitt’s suggestion that the wave function of the universe should vanish at the classical Big Bang singularity is considered here within the framework of one-loop quantum cosmology.
Giampiero Esposito
doaj +1 more source
Why do naked singularities form in gravitational collapse? [PDF]
, 2001 We investigate what are the key physical features that cause the development of a naked singularity, rather than a black hole, as the end-state of spherical gravitational collapse.
A. Krolak +26 more
core +2 more sources
Liquid Metals as Initiators of Free‐Radical Polymerization of Hydrogels: A Perspective
Advanced Functional Materials, EarlyView.Gallium‐based liquid metals initiate free radical polymerization to form hydrogels without the use of toxic molecular initiators. In addition to initiating polymerization, they can act as crosslinkers, yielding softer, more extensible, and tougher hydrogels than those formed with conventional initiators.
Syed Ahmed Jaseem +8 more
wiley +1 more source
Enhanced Approaches to Gravitational Lensing: A Regular Charged Black Hole in Weak Field Limit
Spektra: Jurnal Fisika dan AplikasinyaGravitational lensing, an integral aspect of general relativity, profoundly impacts our understanding of black holes (BH’s). The presence of a centered singularity resulting from gravitational collapse is a fundamental characteristic of a BH. Nonetheless,
H. M. U. Din, H. S. Ramadhan
doaj +1 more source
On the occurrence of naked singularity in spherically symmetric gravitational collapse [PDF]
, 1994 Generalizing earlier results of [1], we analyze here the spherically symmetric gravitational collapse of a matter cloud with a general form of matter for the formation of a naked singularity.
I. Dwivedi, Pankaj S. Joshi
semanticscholar +1 more source
The Effect of Amino Acids on the Formation of Amorphous Calcium Carbonate Nanoparticles
Advanced Functional Materials, EarlyView.Biomineral formation often proceeds via the assembly of amorphous calcium carbonate (ACC) nanoparticles with narrow size distributions. Using in situ SAXS coupled to a stopped‐flow device, we follow synthetic ACC formation with a 10 ms time resolution and show that amino acids narrow the size distribution at low supersaturation, highlighting their key ...
Lucas Kuhrts +10 more
wiley +1 more source