Results 151 to 160 of about 2,347,924 (407)

Gravitationally Induced Entanglement between Two Massive Particles is Sufficient Evidence of Quantum Effects in Gravity. [PDF]

Physical Review Letters, 2017
All existing quantum-gravity proposals are extremely hard to test in practice. Quantum effects in the gravitational field are exceptionally small, unlike those in the electromagnetic field.
C. Marletto, V. Vedral
semanticscholar   +1 more source

Mimicking Symmetry‐Breaking Einstein Ring by Optical Lens

Advanced Photonics Research, EarlyView.
This article uses an optical lens to emulate the gravitational lensing effect and observe the Einstein ring (ER) patterns. The symmetry‐breaking ER, i.e., Einstein cross, is observed utilizing a rotation‐symmetry‐breaking hemi‐ellipsoid lens. Deformed Einstein cross patterns induced by noncollinearly alignment of the light source–lens–observer are ...
Jun‐Liang Duan, Wen Xiao, Minyong Guo, Tong Liu, Huanyang Chen, Jin‐Hui Chen   +5 more
wiley   +1 more source

Quantum corrections and black hole spectroscopy

, 2010
In the work \cite{BRM,RBE}, black hole spectroscopy has been successfully reproduced in the tunneling picture. As a result, the derived entropy spectrum of black hole in different gravity (including Einstein's gravity, Einstein-Gauss-Bonnet gravity and ...
A Yale, AJM Medved, AJM Medved, AJM Medved, AJM Medved, AJM Medved, B Zhang, BR Majhi, BR Majhi, C-Z Liu, CK Ding, D-Y Chen, D-Y Chen, EC Vagenas, EC Vagenas, EC Vagenas, F Ambrosino, G Kunstatter, J Zhang, J-Y Zhang, JD Bekenstein, JT Wheeler, K Srinivasan, L Zhao, M Arzano, M Maggiore, MB Green, MH Ali, MK Parikh, MK Parikh, MK Parikh, P Kraus, P Kraus, P Mitra, Q-Q Jiang, Q-Q Jiang, Q-Q Jiang, Qing-Quan Jiang, R Banerjee, R Banerjee, R Banerjee, R Banerjee, R Banerjee, R Di, R Kerner, R Kerner, R Kerner, R Kerner, R Li, R Li, R-G Cai, RC Myers, S Hemming, S Hod, S Hod, S Sarkar, S Shankaranarayanan, S Shankaranarayanan, S-Q Wu, SP Kim, SW Hawking, SW Hawking, T Pilling, W Liu, Xu Cai, Y-P Hu, Yan Han, Z Ze Ma   +67 more
core   +1 more source

Rindler quantum gravity [PDF]

Classical and Quantum Gravity, 2012
29 pages, 9 figures, PDF ...
Fernando Nogueira, Joanna L. Karczmarek, Bartlomiej Czech, Mark Van Raamsdonk   +3 more
openaire   +3 more sources

Research Progress on Atmospheric Turbulence Perception and Correction Based on Adaptive Optics and Deep Learning

Advanced Photonics Research, EarlyView.
This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu, Yihang Di, Mengmeng Zhang, Zhenbo Ren, Jianglei Di, Jianlin Zhao   +5 more
wiley   +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, Grosse H, Harold Steinacker, Klammer D, Matusis A, Minwalla S, Sakharov A D, Sakharov A D, Seiberg N, Steinacker H, Steinacker H   +10 more
core   +1 more source

Newtonian gravity in loop quantum gravity [PDF]

arXiv, 2010
We apply a recent argument of Verlinde to loop quantum gravity, to conclude that Newton's law of gravity emerges in an appropriate limit and setting. This is possible because the relationship between area and entropy is realized in loop quantum gravity when boundaries are imposed on a quantum spacetime.
arxiv  

Functional Optical Fibers with Tailored Side Emission from Modified Rod‐in‐Tube Preforms

Advanced Photonics Research, EarlyView.
A modified rod‐in‐tube method enables fabrication of functional optical fibers with tailored light‐diffusing properties. The approach incorporates optically active species at a well‐defined radial position within an otherwise homogeneous fiber core. Using lanthanide ions and noble metal nanoparticles as active species demonstrates wavelength conversion
Jan Schröder, Aaron Reupert, Kilian Pollok, Falko Langenhorst, Lothar Wondraczek   +4 more
wiley   +1 more source

Krylov complexity for Jacobi coherent states

Journal of High Energy Physics
We develop computational tools necessary to extend the application of Krylov complexity beyond the simple Hamiltonian systems considered thus far in the literature.
S. Shajidul Haque, Jeff Murugan, Mpho Tladi, Hendrik J. R. Van Zyl   +3 more
doaj   +1 more source

A New Class of Group Field Theories for 1st Order Discrete Quantum Gravity

, 2007
Group Field Theories, a generalization of matrix models for 2d gravity, represent a 2nd quantization of both loop quantum gravity and simplicial quantum gravity.
Baez J C, Barrett J W, D Oriti, Engle J Pereira R Rovelli C, Freidel L, Freidel L, Freidel L Krasnov K, Freidel L Krasnov K Oriti D, Gelfand I M, Gradshteyn I S, Hamber H W, Hermann R, Livine E Speziale S, Oriti D, Oriti D, Oriti D, Oriti D, Perez A, Perez A Bojowald M, Reisenberger M, Rivers R J, Rovelli C, T Tlas, Williams R   +23 more
core   +1 more source