Electro-gravity entanglement by Moreno Jose C.

“…One fundamental question is the connection between electrical and gravitational forces. We present a quantum entanglement model, with multiple discrete electrically charged wave-packets, that simulates gravitational attraction among them, where quantum states can have only two wave-packets with opposite charge polarities, with equal absolute values, while the rest remain neutral, relating those charges to gravitational masses. …”
Get full text

Strong Electroweak Phase Transition in a Model with Extended Scalar Sector by Mina Saeedhosseini, Ali Tofighi

“…Due to this first-order phase transition in the early universe gravitational waves are produced. We estimate the contributions such as the sound wave, the bubble wall collision, and the plasma turbulence to the stochastic gravitational wave background, and we find that the strength at the peak frequency is large enough to be detected at future gravitational interferometers such as eLISA. …”
Get full text

CALIBRATION METHOD FOR GRAVITY GRADIOMETERS BY MEANS OF TWO ROTATING CYLINDERS by I. Z. Gilavdary, A. Veryaskin

“…The problem of maintaining a constant gravitational gradient in a relatively large volume of space is considered.  …”
Get full text

Analytical and Numerical Methods for Circumbinary Disk Dynamics. II. Inclined Disks by Michal Pirog, Siddharth Mahesh, Sean T. McWilliams

“…These findings have implications for understanding both the expected gravitational-wave signal and electromagnetic counterparts from supermassive black hole binaries.…”
Get full text

On the classical limit of the (sub) n -leading soft graviton theorems in D = 4 without deflection by Samim Akhtar

“…Abstract Tree-level gravitational amplitudes satisfy an infinite hierarchy of soft factorization theorems. …”
Get full text

Interesting Examples of Violation of the Classical Equivalence Principle but Not of the Weak One by Antonio Accioly, Wallace Herdy

“…Two semiclassical violations of the classical equivalence principle (CEP) but not of the weak one (WEP), i.e., Greenberger gravitational Bohr atom and the tree-level scattering of different quantum particles by an external weak higher-order gravitational field, are thoroughly investigated afterwards. …”
Get full text

Axially Symmetric Null Dust Space-Time, Naked Singularity, and Cosmic Time Machine by Faizuddin Ahmed

“…We present a gravitational collapse null dust solution of the Einstein field equations. …”
Get full text

On-shell approach to black hole mergers by Katsuki Aoki, Andrea Cristofoli, Yu-tin Huang

“…We conclude with a comparison to black hole perturbation theory, which gives complementary amplitudes which are non-perturbative in the gravitational coupling but to leading order in the extreme mass ratio limit. …”
Get full text

Thermodynamics of Acoustic Black Holes in Two Dimensions by Baocheng Zhang

“…Then, we discuss the first law of thermodynamics for the acoustic black hole via an intriguing connection between the gravitational-like dynamics of the acoustic horizon and thermodynamics. …”
Get full text

The manipulation of photon blockade via Newtonian gravity by Zhen Li, Wang-Jun Lu, Yun-Lan Zuo

“…Abstract We theoretically investigate the model of a quadratically coupled optomechanical system with a Newtonian gravitational potential in the weak-driving regime, where the optical cavity is driven by an external laser. …”
Get full text

Chameleon Screening and Fifth Force in Globular Clusters I: King Model by Mohadese Mousavi, Mohammad Taghi Mirtorabi, Tahereh Azizi

“…Those globular clusters that are located in the halo of galaxy experience a weak gravitational force due to their great distance from the center of their host galaxy, so they are characterized by extremely low gravitational potential. …”
Get full text

Exact Travelling Wave Solutions for Isothermal Magnetostatic Atmospheres by Fan Subequation Method by Hossein Jafari, Maryam Ghorbani, Chaudry Masood Khalique

“…The equations of magnetohydrostatic equilibria for a plasma in a gravitational field are investigated analytically. An investigation of a family of isothermal magnetostatic atmospheres with one ignorable coordinate corresponding to a uniform gravitational field in a plane geometry is carried out. …”
Get full text

Connecting quasi-normal modes with causality in Lovelock theories of gravity by Avijit Chowdhury, Akash K. Mishra, Sumanta Chakraborty

“…It is known that such correspondence does not generically hold for gravitational QNMs associated with BHs in Lovelock theories. …”
Get full text

A Possible Solution of the Cosmological Constant Problem Based on GW170817 and Planck Observations with Minimal Length Uncertainty by Abdel Magied Diab, Abdel Nasser Tawfik

“…Utilizing features of the UV/IR correspondence and the apparent similarities between GUP (including nongravitating and gravitating impacts on Heisenberg uncertainty principle) and the discrepancy between the theoretical and the observed cosmological constant Λ (obviously manifesting gravitational influences on the vacuum energy density), known as catastrophe of nongravitating vacuum, we suggest a possible solution for this long-standing physical problem, Λ≃10−47 GeV4/ℏ3c3.…”
Get full text

Modelling of Spacecraft Dynamics at Deployment of Large Elastic Structure by V. S. Khoroshilov, A. E. Zakrzhevskii

“…In this paper, a new approach to the modelling of the deployment dynamics of a flexible multi-body system with the time dependent configurations is demonstrated in the frame of the study the dynamics of a spacecraft with the gyro-gravitational system of stabilization. Primarily the gravitational stabilizer that is made as a pantograph structure is in a compact form. …”
Get full text

3D Localization of FRB 20190425A for Its Potential Host Galaxy and Implications by Da-Chun Qiang, Zhi-Qiang You, Sheng Yang, Zong-Hong Zhu, Ting-Wan Chen

“…Although the absence of optical emission detection raises doubts, it does not definitively disprove the connection between the gravitational wave (GW) and FRB.…”
Get full text

Heisenberg-limited spin-mechanical gravimetry by Victor Montenegro

“…Precision measurements of gravitational acceleration, or gravimetry, enable the testing of physical theories and find numerous applications in geodesy and space exploration. …”
Get full text

All near-horizon symmetries of the Schwarzschild black hole in linearised gravity by Ankit Aggarwal, Nava Gaddam

“…We find all near-horizon symmetries that can be potentially relevant to gravitational scattering near the horizon of the Schwarzschild black hole. …”
Get full text

The “Chimera”: An Off-The-Shelf CPU/GPGPU/FPGA Hybrid Computing Platform by Ra Inta, David J. Bowman, Susan M. Scott

Get full text

Herrera complexity and shadows of spherically symmetric compact objects by Subhasis Nalui, Subhra Bhattacharya

“…Such identification helps to obtain an equivalence class of gravitating compact objects based on their degree of complexity with zero complexity identified as the simplest system. …”
Get full text