Results 131 to 140 of about 2,376,163 (413)
Quantum gravity on the lattice [PDF]
General Relativity and Gravitation, 2009 63 pages, 12 ...
openaire +5 more sources
Emergence of string-like physics from Lorentz invariance in loop quantum gravity [PDF]
, 2014 We consider a quantum field theory on a spherically symmetric quantum space time described by loop quantum gravity. The spin network description of space time in such a theory leads to equations for the quantum field that are discrete.
Gambini, Rodolfo, Pullin, Jorge
core +3 more sources
Efficient and Realistic Brain Simulation: A Review and Design Guide for Memristor‐Based Approaches
Advanced Materials Technologies, EarlyView.Memristor‐based emulation of Hodgkin‐Huxley neuron models is investigated, by defining the ideal device characteristics needed for accurate ion‐channel representation and reviewing existing works targeting memristive replication of biological realistic neural behavior.
Lennart Paul Liong Landsmeer +5 more
wiley +1 more source
Quantum gravity, fakeons and microcausality [PDF]
Journal of High Energy Physics, 2018 A bstractWe investigate the properties of fakeons in quantum gravity at one loop. The theory is described by a graviton multiplet, which contains the fluctuation hμν of the metric, a massive scalar ϕ and the spin-2 fakeon χμν .
D. Anselmi, Marco Piva
semanticscholar +1 more source
Matrix Models, Emergent Gravity, and Gauge Theory
, 2009 Matrix models of Yang-Mills type induce an effective gravity theory on 4-dimensional branes, which are considered as models for dynamical space-time. We review recent progress in the understanding of this emergent gravity.
Austing P +10 more
core +1 more source
High Aspect Ratio, Superconducting Vacuum Gap Capacitor NEMS with Plate Distances Down to 32 nm
Advanced Materials Technologies, EarlyView.Fabrication of aluminium vacuum gap capacitor based NEMS is investigated with a free to move top electrode. To avoid collapse of the top electrode vertical stress gradient is controlled through sputter parameters. The result is wafer‐level high‐yield fabrication of vacuum gap capacitors with radii between 7 µm and 30 µm and integrated piezoactuators. A
Ioan Ignat, Daniel Platz, Ulrich Schmid
wiley +1 more source
Quantum state correction of relic gravitons from quantum gravity [PDF]
Phys.Rev.D55:4791-4794,1997, 1996 The semiclassical approach to quantum gravity would yield the Schroedinger formalism for the wave function of metric perturbations or gravitons plus quantum gravity correcting terms in pure gravity; thus, in the inflationary scenario, we should expect correcting effects to the relic graviton (Zel'dovich) spectrum of the order (H/mPl)^2.
arxiv +1 more source
Quantum Gravity on a Torus [PDF]
Acta Physica Polonica B Proceedings Supplement, 2020 To appear in Acta Physica Polonica B Proceedings Supplement. Presented at the 6th Conference of the Polish Society on Relativity.
openaire +4 more sources
QUANTUM GRAVITY AND TURBULENCE [PDF]
International Journal of Modern Physics D, 2010 We apply recent advances in quantum gravity to the problem of turbulence. Adopting the AdS/CFT approach we propose a string theory of turbulence that explains the Kolmogorov scaling in 3 + 1 dimensions and the Kraichnan and Kolmogorov scalings in 2 + 1 dimensions.
Y. Jack Ng +3 more
openaire +4 more sources
Testing quantum superpositions of the gravitational field with Bose-Einstein condensates
, 2004 We consider the gravity field of a Bose-Einstein condensate in a quantum superposition. The gravity field then is also in a quantum superposition which is in principle observable.
Asher Peres +2 more
core +2 more sources