Are latest detected events of gravitational waves in favor of some models of inflation based on string theory?

Abstract

The general potential of power-law inflation is as $V(\varphi )\propto {\varphi }^n$ with scalar field $\varphi$. The behavior of inflation is often known as power-law expansion like $S(\eta )\propto {\eta }^{1+\beta }$ with $1+\beta <0$. In this paper, the theoretical spectra of relic gravitational waves are compared with the measured strain sensitivity of Advanced LIGO and VIRGO, corresponding to the latest detected events of gravitational waves. The results show tight constraints on $\beta$ and $n$. Also, the obtained constraints indicate that special types of the potential of inflation, prototype, and KKLTI models, which are originated from string theory, are more suitable than other models. Our analysis shows that there exist some more chances for the detection of relic gravitational waves.

arXiv comment13 pages, 2 figures

References in corpus (33)

• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• Towards Inflation in String Theory
• Encyclopaedia Inflationaris
• Brane Inflation
• Monodromy in the CMB: Gravity Waves and String Inflation
• Brane-World Gravity
• The Cold Dark Matter Density Perturbation
• Hilltop Inflation
• The Unity of Cosmological Attractors
• COBE, Gravitational Waves, Inflation and Extended Inflation
• Lectures on string/brane cosmology
• Search for the isotropic stochastic background using data from Advanced LIGO's second observing run
• Probing the early universe with inflationary gravitational waves
• CBR Anisotropy and the Running of the Scalar Spectral Index
• Cosmological Expansion in the Randall-Sundrum Brane World Scenario
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological implications of the large-scale two-point correlation function
• Inflation, braneworlds and quintessence
• Precision calculations of the gravitational wave background spectrum from inflation
• Escher in the Sky
• Comparing Infrared Dirac-Born-Infeld Brane Inflation to Observations
• Lectures on inflation and cosmological perturbations
• Field theory models for tachyon and gauge field string dynamics
• Relic Gravitational Waves and Their Detection
• The Implications of the Microwave Background Anisotropies for Laser-Interferometer-Tested Gravitational Waves
• On hilltop and brane inflation after Planck
• Brane Inflation After WMAP Three Year Results
• Confronting brane inflation with Planck and pre-Planck data
• Constraints on brane inflation after Planck 2015: Impacts of the latest local measurement of the Hubble constant
• Relic gravitational waves in the frame of slow-roll inflation with a power-law potential and the detection
• Revisit relic gravitational waves based on the latest CMB observations
• Brane inflation revisited after WMAP five-year results
• Detection relic gravitational waves in thermal case by using Adv.LIGO data of GW150914

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