Results 201 to 210 of about 5,789 (259)

Bianchi I Spacetimes in f(Q)‐Gravity

Fortschritte der Physik, Volume 74, Issue 8, August 2026.
ABSTRACT The Kasner spacetimes are exact solutions that are self‐similar and of significant interest because they can describe the dynamic evolution of kinematic variables near the singularity of the Mixmaster universe. The chaotic behavior of the Mixmaster universe is related to the Kasner relations.
Andronikos Paliathanasis, Genly Leon
wiley   +1 more source

Entropic Dynamics Approach to Relational Quantum Mechanics. [PDF]

Entropy (Basel)
Caticha A, Saleem H.
europepmc   +1 more source

Perturbative Analytical Construction of Bowen–York Initial Data for Binary Black Holes up to Third Order in Spin and Linear Momentum

Fortschritte der Physik, Volume 74, Issue 8, August 2026.
ABSTRACT We analytically construct initial data for binary black hole systems by solving the Einstein constraint equations within the Bowen–York framework. Allowing for arbitrarily oriented linear momenta and spins, we obtain a perturbative solution of the vacuum Hamiltonian constraint up to third order in the source parameters. Our solution explicitly
Leyla Ogurol, Tore Boybeyi, Bayram Tekin
wiley   +1 more source

Analogue simulation of quantum gravity black hole models in a dc-SQUID array. [PDF]

Sci Rep
Maceda MD, Sabín C.
europepmc   +1 more source

Boundary‐Only Weak Deflection by Regular Black Holes, Black‐Bounces, Wormholes, and Static Quadrupolar Spacetimes

Fortschritte der Physik, Volume 74, Issue 8, August 2026.
ABSTRACT We apply the boundary‐only isothermal formulation of finite‐distance weak gravitational deflection to regular black holes, black‐bounces, traversable wormholes, non‐asymptotically flat backgrounds, and static quadrupolar spacetimes. The methodological advance is not a new value for a known bending angle.
Reggie C. Pantig, Ali Övgün
wiley   +1 more source

Quantum-inspired pedestrian mobility modeling: Applying probabilistic spatial simulation to urban walkability and thermal comfort in Sri Lanka. [PDF]

PLoS One
Deshan M, Jayasinghe A, Abenayake C.
europepmc   +1 more source

MOF/MXene Composites for Advanced Electrochemical Energy Storage: Transitioning From Laboratory Research to Practical Application

Rare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Composites of metal–organic frameworks (MOFs)/two‐dimensional transition metal carbides/nitrides (MXene) have been widely recognized as promising electrode materials for advanced electrochemical energy storage systems due to their synergistic structural advantages and tunable electrochemical properties.
Wenjun Zhu, Ziming Wang, Guanrong Wu, Xinyong Tao, Fanxing Bu, Jianmin Luo   +5 more
wiley   +1 more source

Black hole information turbulence and the Hubble tension. [PDF]

Sci Rep
Cabrera Fernández JL.
europepmc   +1 more source

Accurate Sizing and Resolution of Nominal 200 nm Diameter Polystyrene Nanospheres With Charge Detection Mass Spectrometry

Small, Volume 22, Issue 43, 3 August 2026.
This study highlights the utility of charge detection mass spectrometry (CDMS) as a high‐throughput nanoparticle characterization tool. CDMS measurements of 200 nm polystyrene size standards are within 1% of those derived from transmission electron microscopy (TEM). Notably, a mixture of three ∼200 nm samples is readily resolved by CDMS but not by TEM,
Veena S. Avadhani, Conner C. Harper, Evan R. Williams   +2 more
wiley   +1 more source

Domain-Specific Acceleration of Gravity Forward Modeling via Hardware-Software Co-Design. [PDF]

Micromachines (Basel)
Yang Y, Sun D, Ma Z, Gu W.
europepmc   +1 more source