Results 71 to 80 of about 1,088 (209)

Quantum Dust Cores of Black Holes and Their Quasi‐Normal Modes

Fortschritte der Physik, Volume 74, Issue 4, April 2026.
We investigate the quasi‐normal mode spectrum of a gravitationally collapsed ball of dust, considering both a linear and a refined parabolic effective mass function for the quantum core. Furthermore, we account for the quantum leakage of dust particles outside the horizon.
T. Bambagiotti, L. Gallerani, A. Mentrelli, A. Giusti, R. Casadio   +4 more
wiley   +1 more source

Quantum Gravity: Motivations and Alternatives [PDF]

, 2009
The mutual conceptual incompatibility between General Relativity and Quantum Mechanics / Quantum Field Theory is generally seen as the most essential motivation for the development of a theory of Quantum Gravity.
Hedrich, Reiner
core   +1 more source

An Alternative Approach to Spontaneous Photon Triplets Generation

Advanced Physics Research, Volume 5, Issue 3, March 2026.
Day by day, communication and computing technologies are progressing at a lightning speed, which is particularly true of the quantum version of these technologies (QIST). Increasingly, these technologies are emerging from unusual and sometimes bewildering quantum optical effects, which are based on exotic quantum physical theories.
Serge Gauvin
wiley   +1 more source

Monopoles, Clarified

Fortschritte der Physik, Volume 74, Issue 3, March 2026.
ABSTRACT We propose a manifestly duality‐invariant, Lorentz‐invariant, and local action to describe quantum electrodynamics in the presence of magnetic monopoles that derives from Sen's formalism. By employing field strengths as the dynamical variables, rather than potentials, this formalism resolves longstanding ambiguities in prior frameworks.
Aviral Aggarwal, Subhroneel Chakrabarti, Madhusudhan Raman   +2 more
wiley   +1 more source

Experimental studies on electromagnetic analogies to gravity mediated entanglement

New Journal of Physics
Recently, experiments aimed at measuring gravity mediated entanglement (GME) between time-like separated objects have been proposed, which offer the possibility to examine the quantum nature of gravity using near-term technologies.
Ji Bian, Teng Liu, Pengfei Lu, Qifeng Lao, Xinxin Rao, Feng Zhu, Yang Liu, Le Luo   +7 more
doaj   +1 more source

Quantum Aspects of Black Holes [PDF]

, 2006
In this thesis we study two quantum aspects of black holes, their entropy and the Hawking effect. First, we present a model for the statistical interpretation of black hole entropy and show that this entropy emerges as a result of missing information ...
Deeg, Dorothea
core  

Quasinormal Modes for Coherent Quantum Black Holes

Fortschritte der Physik, Volume 74, Issue 3, March 2026.
ABSTRACT Coherent quantum black holes are quantum geometries obtained by means of a mean‐field‐like approach to the gravitational interaction. This procedure attenuates the classical spacetime singularities of general relativity by replacing them with integrable singularities in the quantum‐corrected geometry. After discussing some relevant observables
Tommaso Antonelli, Andrea Giusti, Roberto Casadio, Lavinia Heisenberg   +3 more
wiley   +1 more source

Recent Advances in Cutaneous Haptic Interfaces: A Review

SmartSys, Volume 2, Issue 1, March 2026.
ABSTRACT Cutaneous haptic interfaces have demonstrated substantial potential in human–machine interaction, enabling applications such as immersive experiences, robotic teleoperation, and sensory transfer in prosthetics. By conveying rich haptic cues such as indentation, stretching, vibration, and temperature, cutaneous feedback improves presence ...
Xiaosa Li, Yuan Guo, Caizi Li, Yingkui Zhang, Yilei Zheng, Ronggang Wang, Xinge Yu, Wenbo Ding, Qianqian Tong   +8 more
wiley   +1 more source

SL(2,C) Gauge Theory of Gravitation and the Quantization of the Gravitational Field

International Journal of Theoretical Physics, 1998
A new approach to quantize the gravitational field is presented. It is based on the observation that the quantum character of matter becomes more significant as one gets closer to the big bang. As the metric loses its meaning, it makes sense to consider Schrodinger's three generic types of manifolds - unconnected differentiable, affinely connected, and
Carmeli, Moshe, Malin, Shimon
openaire   +3 more sources

Magnetic Field Effects on the Structure of Neutron Stars

Universe
We investigate the impact of ultrastrong magnetic fields on the structure of neutron stars within a density-dependent relativistic mean-field framework (DDME2).
Harsh Chandrakar, Ishfaq Ahmad Rather, Prashant Thakur, Tarun Kumar Jha, Rodrigo Negreiros, Carline Biesdorf, Mariana Dutra, Odilon Lourenço   +7 more
doaj   +1 more source