Results 41 to 50 of about 129,163 (322)

On the assumptions leading to the information loss paradox

Journal of High Energy Physics, 2021
The information loss paradox is usually stated as an incompatibility between general relativity and quantum mechanics. However, the assumptions leading to the problem are often overlooked and, in fact, a careful inspection of the main hypothesises ...
Luca Buoninfante, Francesco Di Filippo, Shinji Mukohyama   +2 more
doaj   +1 more source

Challenges during Flash Lamp Annealing of Aerosol‐Deposited Barium Titanate Films

Advanced Engineering Materials, EarlyView.
Aerosol deposition is used to rapidly deposit barium titanate films with thicknesses ranging from 2 to 16 μm at room temperature, eliminating the need for further densification. However, to recover the electromechanical properties, annealing is required, which limits the usage of temperature‐sensitive substrates.
Michel Kuhfuß, Juliette Cardoletti, Udo R. Eckstein, Shaoxiong Xie, Alexander Martin, Ken‐ichi Kakimoto, Sebastjan Glinšek, Kyle G. Webber   +7 more
wiley   +1 more source

Deformed General Relativity and Quantum Black Holes Interior

Universe, 2020
Effective models of black holes interior have led to several proposals for regular black holes. In the so-called polymer models, based on effective deformations of the phase space of spherically symmetric general relativity in vacuum, one considers a ...
Denis Arruga, Jibril Ben Achour, Karim Noui   +2 more
doaj   +1 more source

Universal quantum modifications to general relativistic time dilation in delocalised clocks [PDF]

Quantum, 2020
The theory of relativity associates a proper time with each moving object via its world line. In quantum theory however, such well-defined trajectories are forbidden. After introducing a general characterisation of quantum clocks, we demonstrate that, in
Shishir Khandelwal, Maximilian P.E. Lock, Mischa P. Woods   +2 more
doaj   +1 more source

Rotation and Spin in Physics

, 2010
We delineate the role of rotation and spin in physics, discussing in order Newtonian classical physics, special relativity, quantum mechanics, quantum electrodynamics and general relativity. In the latter case, we discuss the generalization of the Kepler
A Lawler, A Papapetrou, AP French, BM Barker, BM Barker, BM Barker, BM Barker, BM Barker, C Feiler, C Moller, DW Sciama, E Cartan, E Corinaldesi, FW Hehl, G Brumfiel, GE Uhlenbeck, H Goldstein, HC Corben, I Ciufolini, I Ciufolini, IH Stairs, JA Wheeler, JD Jackson, JG Williams, JG Williams, JJ Sakurai, L Chan, L Foldy, LD Landau, LH Thomas, M Hillery, M Kramer, ME Rose, PAM Dirac, R Utiyama, RF O’Connell, RF O’Connell, RF O’Connell, RF O’Connell, RF O’Connell, RF O’Connell, RF O’Connell, RF O’Connell, RP Breton, S Weinberg, SN Gupta, TD Newton, TWB Kibble, V Bargmann, VB Berestetskii   +49 more
core   +1 more source

Fabrication of Multifunctional FeSi Gyroid Lattice Composites via Additive Manufacturing and Polymer Infiltration

Advanced Engineering Materials, EarlyView.
A two‐step approach combining laser powder bed fusion of FeSi electrical steel with Bakelite infiltration enables the fabrication of multifunctional gyroid lattice composites. The resulting structures exhibit high strength, magnetic anisotropy, and complete polymer infiltration, demonstrating a simple and scalable route toward lightweight, mechanically
Angelo F. Andreoli, Mayumi A. Nakahashi, Vitor E. Pinotti, Felipe O. C. Bernardo, Lidiane C. Costa, Francisco G. Coury, Ronei C. de Oliveira, Adilson J. A. de Oliveira, Carlos E. H. Ventura, Piter Gargarella   +9 more
wiley   +1 more source

Expansion evolution of nonhomogeneous metric with quantum-mechanically revisited fundamental metric tensor

Nuclear Physics B
To explore the properties of space and initial singularities in the context of general relativity, where spacetime becomes poorly defined and no longer belongs to a regular manifold, we examine the evolution of the expansion of timelike geodesic ...
Abdel Nasser Tawfik, Azzah A. Alshehri, Antonio Pasqua   +2 more
doaj   +1 more source

Nonlocal teleparallel cosmology

European Physical Journal C: Particles and Fields, 2017
Even though it is not possible to differentiate general relativity from teleparallel gravity using classical experiments, it could be possible to discriminate between them by quantum gravitational effects. These effects have motivated the introduction of
Sebastian Bahamonde, Salvatore Capozziello, Mir Faizal, Rafael C. Nunes   +3 more
doaj   +1 more source

The Fractal Quantum Gravity

Reports in Advances of Physical Sciences, 2023
Based on the smallest physical constant of the product of space interval, time interval, and energy, the fractal quantum gravity (FQG) theory has demonstrated that every particle or physical system consists of these smallest units in fractal structures ...
Shuming Li, Lihua Li Huang, Shuwei Li, Shuyun Li   +3 more
doaj   +1 more source

Sustainable Synthesis of Bio‐Based Magnetic and Conductive Wood for Electromagnetic Interference Shielding Applications

Advanced Engineering Materials, EarlyView.
A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya, Majed Amini, Mohammad Arjmand, Earl Johan Foster   +3 more
wiley   +1 more source