scholarly journals Using Gravitational Wave Observations to Probe Quantum Gravity

2018 ◽  
Author(s):  
Justine Tarrant ◽  
Sergio Colafrancesco
Keyword(s):  
Quantum Gravity ◽  
Gravitational Wave

scholarly journals Gravitational wave–gauge field dynamics

2017 ◽  
Vol 26 (12) ◽  
pp. 1742005 ◽  
Author(s):  
R. R. Caldwell ◽  
C. Devulder ◽  
N. A. Maksimova
Keyword(s):  
Quantum Gravity ◽  
Gravitational Wave ◽  
Gravitational Waves ◽  
Gauge Field ◽  
Linear Combination ◽  
Effective Mass ◽  
Normal Modes ◽  
New Approaches ◽  
Insight Into

The dynamics of a gravitational wave propagating through a cosmic gauge field are dramatically different than in vacuum. We show that a gravitational wave acquires an effective mass, is birefringent, and its normal modes are a linear combination of gravitational waves and gauge field excitations, leading to the phenomenon of gravitational wave–gauge field oscillations. These surprising results provide an insight into gravitational phenomena and may suggest new approaches to a theory of quantum gravity.

scholarly journals Gravitational-wave luminosity distance in quantum gravity

2019 ◽  
Vol 798 ◽  
pp. 135000 ◽  
Author(s):  
Gianluca Calcagni ◽  
Sachiko Kuroyanagi ◽  
Sylvain Marsat ◽  
Mairi Sakellariadou ◽  
Nicola Tamanini ◽  
...  
Keyword(s):  
Quantum Gravity ◽  
Gravitational Wave ◽  
Luminosity Distance

scholarly journals Gravitational wave echoes from macroscopic quantum gravity effects

2017 ◽  
Vol 2017 (5) ◽  
Author(s):  
Carlos Barceló ◽  
Raúl Carballo-Rubio ◽  
Luis J. Garay
Keyword(s):  
Quantum Gravity ◽  
Gravitational Wave ◽  
Macroscopic Quantum ◽  
Gravity Effects

scholarly journals CAN LIGHTCONE FLUCTUATIONS BE PROBED WITH COSMOLOGICAL BACKGROUNDS?

2005 ◽  
Vol 20 (07) ◽  
pp. 499-507 ◽  
Author(s):  
DAVID POLARSKI ◽  
PHILIPPE ROCHE
Keyword(s):  
Quantum Gravity ◽  
Gravitational Wave ◽  
Recent Work ◽  
Light Cone ◽  
Cosmological Observations ◽  
Experimental Side ◽  
Gravitational Wave Background

Finding signatures of quantum gravity in cosmological observations is now actively pursued both from the theoretical and the experimental side. Recent work has concentrated on finding signatures of light-cone fluctuations in the CMB. Because in inflationary scenarios a Gravitational Wave Background (GWB) is always emitted much before the CMB, we can ask, in the hypothesis where this GWB could be observed, what is the imprint of light cone fluctuations on this GWB. We show that due to the flat nature of the GWB spectrum, the effect of lightcone fluctuations are negligible.

scholarly journals Can We Detect the Quantum Nature of Weak Gravitational Fields?

Universe ◽  
2021 ◽  
Vol 7 (11) ◽  
pp. 414
Author(s):  
Francesco Coradeschi ◽  
Antonia Micol Frassino ◽  
Thiago Guerreiro ◽  
Jennifer Rittenhouse West ◽  
Enrico Junior Schioppa
Keyword(s):  
General Relativity ◽  
Quantum Theory ◽  
Quantum Gravity ◽  
Gravitational Wave ◽  
Experimental Evidence ◽  
Theoretical Framework ◽  
Holy Grail ◽  
Gravitational Fields ◽  
Quantum Nature ◽  
Quantization Of Gravity

A theoretical framework for the quantization of gravity has been an elusive Holy Grail since the birth of quantum theory and general relativity. While generations of scientists have attempted to find solutions to this deep riddle, an alternative path built upon the idea that experimental evidence could determine whether gravity is quantized has been decades in the making. The possibility of an experimental answer to the question of the quantization of gravity is of renewed interest in the era of gravitational wave detectors. We review and investigate an important subset of phenomenological quantum gravity, detecting quantum signatures of weak gravitational fields in table-top experiments and interferometers.

scholarly journals A Dialogue on Fifth Dimension, Empty-Space

2021 ◽  
Author(s):  
Prashant Chauhan
Keyword(s):  
Quantum Gravity ◽  
Gravitational Wave ◽  
Gravitational Waves ◽  
Empty Space ◽  
Space Time ◽  
Fifth Dimension ◽  
Relative Gravity

Abstract Gravity and space-time are relative to each other because gravity or more precisely a gravitational wave is the only candidate responsible for empty-space around a mass and empty-space is the only candidate responsible for the mass of an object. It is true that a gravitational wave is a ripple in space-time but space-time is a result of a web of gravitational waves is also true and hence it is more appropriate to call space-time as gravitational-space-time and its known word to us is empty-space. Smallest unit of this web of gravitational waves is known as kaushal constant (K) [1]. Gravity is a result of the force of attraction in between two adjacent kaushal constants of the adjacent planes at a relative point in gravitational-space-time and hence this can be nicknamed as a web of gravity. The slower you move through space, the smaller your gravity web (or weaker the relative gravity) and hence the faster you move through time and vice versa. This paper is a solution to both mathematical and theoretical problems encountered in the field of quantum gravity [2] using theory of special connectivity [3].

scholarly journals Gravitational-wave probe of effective quantum gravity

2008 ◽  
Vol 78 (6) ◽  
Author(s):  
Stephon Alexander ◽  
Lee Samuel Finn ◽  
Nicolás Yunes
Keyword(s):  
Quantum Gravity ◽  
Gravitational Wave

scholarly journals Quantum gravity and gravitational-wave astronomy

2019 ◽  
Vol 2019 (10) ◽  
pp. 012-012 ◽  
Author(s):  
Gianluca Calcagni ◽  
Sachiko Kuroyanagi ◽  
Sylvain Marsat ◽  
Mairi Sakellariadou ◽  
Nicola Tamanini ◽  
...  
Keyword(s):  
Quantum Gravity ◽  
Gravitational Wave
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