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Lunar Gravitational-Wave Detection
A new era of lunar exploration has begun bringing immense opportunities for science as well. It has been proposed to deploy a new generation of...
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Test gravitational waves in sandwich wave background
The scattering of test fields by sandwich waves has been studied extensively. It has been found that the energy of the scattered waves is amplified...
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London-Like Tensor Modes of Gravitational Waves in Cosmic String Cosmology
AbstractFrom a classical analysis, we show that gravitational waves in a cosmological medium with the equation of state parameter
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Distinguishing environmental effects on binary black hole gravitational waveforms
Future gravitational wave interferometers such as the Laser Interferometer Space Antenna, Taiji, DECi-hertz Interferometer Gravitational wave...
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Gravitational Waves
Physics has known about and dealt with wave phenomena for a long time. In fact, Physics courses feature a variety of treatments of waves in fluids,...
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Effective gravitational couplings of Kaluza-Klein gauge theories
We study the effective gravitational couplings of four-dimensional gauge theories with eight supercharges. The class of theories we analyse are...
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Gravitational waves from phase transitions in scale invariant models
We investigate the properties of the gravitational waves (GW) generated during a strongly first order electroweak phase transition (EWPT) in models...
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Strong Gravitational Lensing and Microlensing of Supernovae
Strong gravitational lensing and microlensing of supernovae (SNe) are emerging as a new probe of cosmology and astrophysics in recent years. We...
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Gravitational wave and CMB probes of axion kination
Rotations of an axion field in field space provide a natural origin for an era of kination domination, where the energy density is dominated by the...
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Gravitational self force from scattering amplitudes in curved space
We employ scattering amplitudes in curved space to model the dynamics of a light probe particle with mass m orbiting in the background spacetime...
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Searches for continuous-wave gravitational radiation
Now that detection of gravitational-wave signals from the coalescence of extra-galactic compact binary star mergers has become nearly routine, it is...
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Flame in a Gravitational Field
The RayleighRayleigh-Taylor (RT) instability develops at the interface between a heavy and a light fluid when the fluid (gas) with a higher...
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Primordial gravitational waves assisted by cosmological scalar perturbations
Primordial gravitational waves are a crucial prediction of inflation theory, and their detection through their imprints on the cosmic microwave...
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Rindler fluids from gravitational shockwaves
We study a correspondence between gravitational shockwave geometry and its fluid description near a Rindler horizon in Minkowski spacetime. Utilizing...
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QCD-collapsed domain walls: QCD phase transition and gravitational wave spectroscopy
For a discrete symmetry that is anomalous under QCD, the domain walls produced in the early universe from its spontaneous breaking can naturally...
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Wormhole effective mass and gravitational waves by binary systems containing wormhole
We considered the generation of gravitational waves by the binary system associated with a wormhole. In the Newtonian limit, the gravitational...
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Searching for Strong Gravitational Lenses
Strong gravitational lenses provide unique laboratories for cosmological and astrophysical investigations, but they must first be discovered – a task...
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Q-Balls formation and the production of gravitational waves with non-minimal gravitational coupling
We propose to introduce non-minimal couplings of Affleck–Dine (AD) field to gravity by adding the coupling of AD field to the Ricci scalar curvature....
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Helio-latitude Dependence of the Solar Wind Parameters and the Magneto-Gravitational Dragging of the Solar Wind
A theoretical model of the magnetic-field coupling to the background gravitational field of a rotating Sun-like star is used here to calculate the...
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On (scalar QED) gravitational positivity bounds
We study positivity bounds in the presence of gravity. We first review the gravitational positivity bound at the tree-level, where it is known that a...