Results 71 to 80 of about 63,762 (335)
Quantum solitonic wave-packet of a meso-scopic system in singularity free gravity
Nuclear Physics B, 2018 In this paper we will discuss how to localise a quantum wave-packet due to self-gravitating meso-scopic object by taking into account gravitational self-interaction in the Schrödinger equation beyond General Relativity.
Luca Buoninfante +2 more
doaj +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
Naked Singularities as Particle Accelerators II [PDF]
, 2011 We generalize here our earlier results on particle acceleration by naked singularities. We showed recently[1] that the naked singularities that form due to gravitational collapse of massive stars provide a suitable environment where particles could get ...
Daniele Malafarina +8 more
core +3 more sources
Quantum Gravitational Non-Singular Tunneling Wavefunction Proposal
The 2nd Electronic Conference on Universe, 2023 It was recently shown that tunneling wavefunction proposal is consistent with loop quantum geometry corrections including both holonomy and inverse scale factor corrections in the gravitational part of a spatially closed isotropic model with a positive cosmological constant.
Meysam Motaharfar, Parampreet Singh
openaire +3 more sources
Advanced Materials, EarlyView.We address the inherently weak particle adhesion of conventional air filters by coating a dynamically crosslinked adhesive layer that delivers capillarity‐driven strong adhesion and particle absorption mediated by dynamic bond exchange. The resulting enhancement in particle adhesion enables efficient ultrafast (up to 20 m s−1) and omnidirectional ...
Junyong Park +11 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 instability of 3d null singularities
, 2002 String propagation on a three-dimensional Lorentzian string orbifold with a null singularity has been studied by Horowitz and Steif, and more recently by Liu, Moore and Seiberg. We analyze the target space as a classical gravitational background.
A. Adams +18 more
core +3 more sources
Negative Pressure and Naked Singularities in Spherical Gravitational Collapse [PDF]
, 1996 Assuming the weak energy condition, we study the nature of the non-central shell-focussing singularity which can form in the gravitational collapse of a spherical compact object in classical general relativity.
Clarke C J S +13 more
core +3 more sources
Advanced Materials Technologies, EarlyView.Microfluidic engineering enables the fabrication of chitosan‐coated, melatonin‐loaded nanoemulsions with controlled release and enhanced physicochemical stability for space pharmaceutics. Interfacial biopolymer coating modulates droplet behavior under accelerated thermal stress and simulated microgravity.
Modupe Adebowale +3 more
wiley +1 more source
Born–Infeld black holes in 4D Einstein–Gauss–Bonnet gravity
European Physical Journal C: Particles and Fields, 2020 A novel four-dimensional Einstein-Gauss-Bonnet gravity was formulated by Glavan and Lin (Phys. Rev. Lett. 124:081301, 2020), which is intended to bypass the Lovelock’s theorem and to yield a non-trivial contribution to the four-dimensional gravitational ...
Ke Yang +3 more
doaj +1 more source