Results 191 to 200 of about 1,952,544 (384)
The Positive Action Conjecture and Asymptotically Euclidean Metrics in Quantum Gravity [PDF]
, 1993 G. W. Gibbons, C.N. Pope
openalex +1 more source
BARRIERS IN QUANTUM GRAVITY [PDF]
, 1994 I discuss recent progress in our understanding of two barriers in quantum gravity: $c > 1$ in the case of 2d quantum gravity and $D > 2$ in the case of Euclidean Einstein-Hilbert gravity formulated in space-time dimensions $D >2$.
openaire +3 more sources
Advancements in Machine Learning for Microrobotics in Biomedicine
Advanced Intelligent Systems, EarlyView.Microrobotics is an innovative technology with great potential for noninvasive medical interventions. However, controlling and imaging microrobots pose significant challenges in complex environments and in living organisms. This review explores how machine learning algorithms can address these issues, offering solutions for adaptive motion control and ...
Amar Salehi +6 more
wiley +1 more source
The Quantum Regularization of Singular Black-Hole Solutions in Covariant Quantum Gravity. [PDF]
Entropy (Basel), 2021 Tessarotto M, Cremaschini C.
europepmc +1 more source
Generalized sums over histories for quantum gravity (I). Smooth conifolds [PDF]
, 1993 Kristin Schleich, Donald Witt
openalex +1 more source
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.An electromagnetic manipulation system enhances magnetic field strength in the Z‐direction for 3D control of microrobots and nanoparticles. Featuring eight metal‐core coils and two air‐core coils arranged hemispherically, it ensures unimpeded workspace access and integrates imaging tools.
Nader Latifi Gharamaleki +4 more
wiley +1 more source
QUANTUM RINGS AND RECURSION RELATIONS IN 2D QUANTUM GRAVITY [PDF]
, 1992 Shamit Kachru
openalex +1 more source
Bubbles Acting as Micro End‐Effectors for Dexterous Manipulation and Sensing in Aqueous Environment
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.Inspired by bubbles, this article proposes a low‐cost method for multifunctional manipulation and sensing using microbubbles in aqueous environments. Bubbles are easily generated in situ, enabling the safe and adaptive handling of microobjects and sensing of microforces and surface textures.
Zichen Xu, Qingsong Xu
wiley +1 more source
Deep Learning Spinfoam Vertex Amplitudes: The Euclidean Barrett–Crane Model
UniverseSpinfoam theories propose a well-defined path-integral formulation for quantum gravity, and it is hoped that they will provide the dynamics of loop quantum gravity. However, it is computationally hard to calculate spinfoam amplitudes.
Hanno Sahlmann, Waleed Sherif
doaj +1 more source
Non-simple conformal loop ensembles on Liouville quantum gravity and the law of CLE percolation interfaces. [PDF]
Probab Theory Relat Fields, 2021 Miller J, Sheffield S, Werner W.
europepmc +1 more source