Results 91 to 100 of about 29,056 (316)
Analytical and Numerical Analysis of Circumbinary Disk Dynamics. I. Coplanar Systems
The Astrophysical JournalWe present an analytical and numerical study of a system composed of a stellar binary pair and a massless, locally isothermal viscous accretion disk that is coplanar to the binary orbital plane.
Siddharth Mahesh +2 more
doaj +1 more source
Tests of CPT invariance in gravitational waves with LIGO-Virgo catalog GWTC-1
European Physical Journal C: Particles and Fields, 2020 A discovery of gravitational waves from binary black holes raises a possibility that measurements of them can provide strict tests of CPT invariance in gravitational waves.
Sai Wang, Zhi-Chao Zhao
doaj +1 more source
Gauge-Invariant Localization of Infinitely Many Gravitational Energies from All Possible Auxiliary Structures [PDF]
, 2009 The problem of finding a covariant expression for the distribution and conservation of gravitational energy-momentum dates to the 1910s. A suitably covariant infinite-component localization is displayed, reflecting Bergmann's realization that there are ...
Pitts, J. Brian, J. Brian Pitts
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Advanced Electronic Materials, EarlyView.This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley +1 more source
Evolution of Physical Intelligence Across Scales
Advanced Intelligent Discovery, EarlyView.By following the evolution of physical intelligence across scales, this article shows how intelligence arises from materials, structures, physical interactions, and collectives. It establishes physical intelligence as the evolutionary foundation upon which embodied intelligence is built.
Ke Liu +7 more
wiley +1 more source
Freezing-in gravitational waves
Physical Review DThe thermal plasma in the early Universe produced a stochastic gravitational wave (GW) background, which peaks today in the microwave regime and was dubbed the cosmic gravitational microwave background (CGMB). In previous works, only single graviton production processes that contribute to the CGMB have been considered.
Jacopo Ghiglieri +2 more
openaire +5 more sources
Analytical and Numerical Methods for Circumbinary Disk Dynamics. II. Inclined Disks
The Astrophysical JournalTo gain insight into the dynamical influence of a supermassive black hole binary on a circumbinary accretion disk, we investigate the binary and viscous torque densities throughout such a disk, with emphasis on the final density distribution ...
Michal Pirog +2 more
doaj +1 more source
Gravitational waves: a challenge to theoretical astrophysics
, 2001 Proocedings of the International Conference "Gravitational waves: a challenge to theoretical astrophysics" ICTP Lecture Series, ISBN 92-95003-05 ...
L. REZZOLLA +2 more
core
Advanced Intelligent Systems, EarlyView.This study introduces a data‐driven framework that combines deep reinforcement learning with classical path planning to achieve adaptive microrobot navigation. By training a surrogate neural network to emulate microrobot dynamics, the approach improves learning efficiency, reduces training time, and enables robust real‐time obstacle avoidance in ...
Amar Salehi +3 more
wiley +1 more source
Advanced Intelligent Systems, EarlyView.A physics‐guided deep learning framework, ParamNet, is introduced for the intelligent self‐inversion of vacuum optical tweezers. By fuzing dual‐branch time–frequency features with physical dynamical constraints, it achieves high‐accuracy calibration of trap parameters from short‐window, low‐frequency trajectories, outperforming traditional methods ...
Qi Zheng +4 more
wiley +1 more source