Results 131 to 140 of about 173,760 (383)
Continuum limit in matrix models for quantum gravity from the Functional Renormalization Group [PDF]
, 2013 We consider the double-scaling limit in matrix models for two-dimensional quantum gravity, and establish the nonperturbative functional Renormalization Group as a novel technique to compute the corresponding interacting fixed point of the Renormalization
A. Eichhorn, Tim A. Koslowski
semanticscholar +1 more source
NEW SPIN FOAM MODELS OF QUANTUM GRAVITY [PDF]
Modern Physics Letters A, 2005 We give a brief and a critical review of the Barret-Crane spin foam models of quantum gravity. Then we describe two new spin foam models which are obtained by direct quantization of General Relativity and do not have some of the drawbacks of the Barret-Crane models.
openaire +5 more sources
Towards a spin foam model description of black hole entropy
, 2008 We propose a way to describe the origin of black hole entropy in the spin foam models of quantum gravity. This stimulates a new way to study the relation of spin foam models and loop quantum gravity.Comment: 5 pages, 1 ...
Corichi A +7 more
core +1 more source
2-Group Representations for Spin Foams [PDF]
, 2009 Just as 3d state sum models, including 3d quantum gravity, can be built using categories of group representations, "2-categories of 2-group representations" may provide interesting state sum models for 4d quantum topology, if not quantum gravity. Here we
Aristide Baratin +4 more
core +3 more sources
Advanced Materials, EarlyView.A molecular motor with four‐state dynamic chirality is integrated into liquid crystals, enabling quadruple sequential helix inversions and high helical twisting power. Due to high motor efficiency, the supramolecular helicity can be controlled by near‐infrared light via upconversion nanoparticles, resulting in a robust, multistate, photoresponsive soft
Jinyu Sheng +3 more
wiley +1 more source
De Sitter microstates from T T ¯ $$ \overline{T} $$ + Λ2 and the Hawking-Page transition
Journal of High Energy Physics, 2022 We obtain microstates accounting for the Gibbons-Hawking entropy in dS 3, along with a subleading logarithmic correction, from the solvable T T ¯ $$ \overline{T} $$ + Λ2 deformation of a seed CFT with sparse light spectrum.
Evan Coleman +6 more
doaj +1 more source
Quantum gravity and Standard-Model-like fermions
Physics Letters B, 2017 6 pages, 2 ...
Eichhorn, Astrid, Lippoldt, Stefan
openaire +4 more sources
Influence of Micropillar Height Modulation on Droplet Evaporation and Wetting State Transitions
Advanced Materials Interfaces, EarlyView.Controlling droplet evaporation dynamics is crucial across many fields. Here, it demonstrates laser‐fabricated polymer micropillar arrays with tailored height variations to regulate evaporation behavior. While all arrays exhibit superhydrophobic wetting, their distinct height profiles effectively slow evaporation and alter evaporation modes ...
Prabuddha De Saram +2 more
wiley +1 more source
Benefits of Objective Collapse Models for Cosmology and Quantum Gravity [PDF]
, 2013 We display a number of advantages of objective collapse theories for the resolution of long-standing problems in cosmology and quantum gravity. In particular, we examine applications of objective reduction models to three important issues: the origin of ...
E. Okon, D. Sudarsky
semanticscholar +1 more source
Quantum-gravity effects on a Higgs-Yukawa model [PDF]
Physical Review D, 2016 13 pages + appendix, 10 figures, simplified basis for induced ...
Astrid Eichhorn +2 more
openaire +3 more sources