Cosmological waveguides for gravitational waves

Bimonte, Giuseppe; Capozziello, Salvatore; Manko, V. S.; Marmo, G.

doi:10.1103/physrevd.58.104009

Cited by 7 publications

(5 citation statements)

References 25 publications

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“…The features of wave dynamics make the fraction of lensed events larger than that optics approximation has ever predicted. This fact motivated many authors to study lensing effects on gravitational waves in the past decade [3][4][5][6][7][8][9][10][11][12][13][14][15][16]. As noted in [4], the lensing effect is very important for the space-based gravitational wave detector LISA [17].…”

Section: Introductionmentioning

confidence: 98%

Gravitational lensing effects on parameter estimation in gravitational wave detection with advanced detectors

Cao

Wang

2014

Phys. Rev. D

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The gravitational lensing effect is important to the detection of electromagnetic signals in astrophysics. The gravitational wave lensing effect has also been found significant to gravitational wave detection in the past decade. Recent analysis shows that the lensing events for advanced detectors could be quite plausible. The black holes in our MilkyWay Galaxy may play the role of lens objects. These facts motivate us to study the lensing effects on gravitational wave signals for advanced detectors. Taking advanced LIGO and Einstein Telescope for examples, we investigate the lensing effects on the parameter extraction of gravitational wave signals. Using the Markov chain Monte Carlo simulation together with matched filtering methods, we find that the lensing effect for a lens object with small mass is negligible. But when the mass of the lens object increases to larger than 1000M⊙ the lensing effect becomes important. Using the template without lensing corrections would result in loss of signal detections. In contrast if we consider templates with lensing effects, the lensed signal may provide much information about the lens black hole. These facts may give us a new way to determine the parameters of the lensing object. For example, this kind of signal may also help us estimate the mass and the distance of the supermassive black hole hosted at the center of our Galaxy

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Section: Introductionmentioning

confidence: 98%

Gravitational lensing effects on parameter estimation in gravitational wave detection with advanced detectors

Cao

Wang

2014

Phys. Rev. D

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“…The results, however, have shown to be highly controversial, either by finding no evidence for ISB/SNR or favoring the phenomenon. Examples of the former were obtained in the context of methods like the large-N expansion [7], Gaussian effective potential [8], chiral Lagrangian technique [9] and Monte Carlo simulations on the lattice [10]. Some applications which find evidence for ISB/SNR are Refs.…”

Section: Introductionmentioning

confidence: 99%

Nonperturbative study of inverse symmetry breaking at high temperatures

Pinto

Ramos

2000

Phys. Rev. D

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The optimized linear ␦ expansion is applied to multifield O(N 1 )ϫO(N 2 ) scalar theories at high temperatures. Using the imaginary time formalism the thermal masses are evaluated perturbatively up to order ␦ 2 which considers consistently all two-loop contributions. A variational procedure associated with the method generates nonperturbative results which are used to search for parameter values for inverse symmetry breaking ͑or symmetry nonrestoration͒ at high temperatures. Our results are compared with the ones obtained by the one-loop perturbative approximation, the gap equation solutions and the renormalization group approach, showing good agreement with the latter method. Apart from strongly supporting inverse symmetry breaking ͑or symmetry nonrestoration͒, our results reveal the possibility of other high-temperature symmetry breaking patterns for which the last term in the breaking sequence is O(N 1 Ϫ1)ϫO(N 2 Ϫ1).

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“…Knowledge of this subject matter was understandable has its knowledge may provide clues on the evolution of the early universe. Other articles addressed different lensing topics such as the one published by G. Bimonte et al on cosmological waveguides for GWs [178]. There they explore the possibility that a gravitational wave from a distant source gets trapped by the gravitational field of a long filament of galaxies of the kind seen in the large-scale structure of the Universe.…”

Section: Gravitational Lensing Of Gravitational Wavesmentioning

confidence: 99%

The Legacy of Einstein’s Eclipse, Gravitational Lensing

2019

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A hundred years ago, two British expeditions measured the deflection of starlight by the Sun's gravitational field, confirming the prediction made by Einstein's General Theory of Relativity. One hundred years later many physicists around the world are involved in studying the consequences and use as a research tool, of the deflection of light by gravitational fields, a discipline that today receives the generic name of Gravitational Lensing. The present review aims to commemorate the centenary of Einstein's Eclipse expeditions by presenting a historical perspective of the development and milestones on gravitational light bending, covering from early XIX century speculations, to its current use as an important research tool in astronomy and cosmology.

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Cosmological waveguides for gravitational waves

Cited by 7 publications

References 25 publications

Gravitational lensing effects on parameter estimation in gravitational wave detection with advanced detectors

Gravitational lensing effects on parameter estimation in gravitational wave detection with advanced detectors

Nonperturbative study of inverse symmetry breaking at high temperatures

The Legacy of Einstein’s Eclipse, Gravitational Lensing

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