scholarly journals Gravitational waves in higher-order R2 gravity

2021 ◽  
Vol 104 (8) ◽  
Author(s):  
S. G. Vilhena ◽  
L. G. Medeiros ◽  
R. R. Cuzinatto
Keyword(s):  
Gravitational Waves ◽  
Higher Order

scholarly journals Gravitational Waves of Third and Higher Order

1972 ◽  
Vol 48 (1) ◽  
pp. 333-334 ◽  
Author(s):  
Tatsuo Tokuoka
Keyword(s):  
Gravitational Waves ◽  
Higher Order

scholarly journals Considerations on gravitational waves in higher-order local and non-local gravity

2020 ◽  
Vol 810 ◽  
pp. 135821 ◽  
Author(s):  
S. Capozziello ◽  
M. Capriolo ◽  
S. Nojiri
Keyword(s):  
Gravitational Waves ◽  
Higher Order ◽  
Local Gravity ◽  
Non Local

scholarly journals Massive, massless and ghost modes of gravitational waves from higher-order gravity

2010 ◽  
Vol 34 (4) ◽  
pp. 236-244 ◽  
Author(s):  
Charalampos Bogdanos ◽  
Salvatore Capozziello ◽  
Mariafelicia De Laurentis ◽  
Savvas Nesseris
Keyword(s):  
Gravitational Waves ◽  
Higher Order ◽  
Higher Order Gravity

scholarly journals Effects of static and dynamic higher-order optical modes in balanced homodyne readout for future gravitational waves detectors

2017 ◽  
Vol 95 (6) ◽  
Author(s):  
Teng Zhang ◽  
Stefan L. Danilishin ◽  
Sebastian Steinlechner ◽  
Bryan W. Barr ◽  
Angus S. Bell ◽  
...  
Keyword(s):  
Gravitational Waves ◽  
Higher Order ◽  
Optical Modes

scholarly journals Quantum Noise in a Fabry-Perot Interferometer Including the Influence of Diffraction Loss of Light

Galaxies ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 9
Author(s):  
Shoki Iwaguchi ◽  
Tomohiro Ishikawa ◽  
Masaki Ando ◽  
Yuta Michimura ◽  
Kentaro Komori ◽  
...  
Keyword(s):  
Gravitational Waves ◽  
Quantum Noise ◽  
Higher Order ◽  
Diffraction Loss ◽  
Optical Cavities ◽  
Higher Order Modes ◽  
Fabry Perot ◽  
Primordial Gravitational Waves ◽  
Mode Loss ◽  
High Finesse

The DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) is designed to detect gravitational waves at frequencies between 0.1 and 10 Hz. In this frequency band, one of the most important science targets is the detection of primordial gravitational waves. DECIGO plans to use a space interferometer with optical cavities to increase its sensitivity. For evaluating its sensitivity, diffraction of the laser light has to be adequately considered. There are two kinds of diffraction loss: leakage loss outside the mirror and higher-order mode loss. These effects are treated differently inside and outside of the Fabry-Perot (FP) cavity. We estimated them under the conditions that the FP cavity has a relatively high finesse and the higher-order modes do not resonate. As a result, we found that the effects can be represented as a reduction of the effective finesse of the cavity with regard to quantum noise. This result is useful for optimization of the design of DECIGO. This method is also applicable to any FP cavities with a relatively small beam cut and the finesse sufficiently higher than 1.

scholarly journals Higher-order Hermite-Gauss modes for gravitational waves detection

2021 ◽  
Vol 103 (4) ◽  
Author(s):  
Stefan Ast ◽  
Sibilla Di Pace ◽  
Jacques Millo ◽  
Mikhaël Pichot ◽  
Margherita Turconi ◽  
...  
Keyword(s):  
Gravitational Waves ◽  
Higher Order ◽  
Gravitational Waves Detection

scholarly journals Weak field limit and gravitational waves in higher-order gravity

2019 ◽  
Vol 16 (03) ◽  
pp. 1950047 ◽  
Author(s):  
Salvatore Capozziello ◽  
Maurizio Capriolo ◽  
Loredana Caso
Keyword(s):  
Gravitational Waves ◽  
Order Term ◽  
Normal Modes ◽  
Weak Field ◽  
Higher Order ◽  
Field Limit ◽  
Weak Field Limit ◽  
Higher Order Gravity ◽  
Higher Order Derivative ◽  
Effective Theories

We derive the weak field limit for a gravitational Lagrangian density [Formula: see text], where higher-order derivative terms in the Ricci scalar [Formula: see text] are taken into account. The interest for this kind of effective theories comes out from the consideration of the infrared and ultraviolet behaviors of gravitational field and, in general, from the formulation of quantum field theory in curved spacetimes. Here, we obtain solutions in weak field regime both in vacuum and in the presence of matter and derive gravitational waves considering the contribution of [Formula: see text] terms. By using a suitable set of coefficients [Formula: see text], it is possible to find up to [Formula: see text] normal modes of oscillation with six polarization states with helicity 0 or 2. Here [Formula: see text] is the higher-order term in the [Formula: see text] operator appearing in the gravitational Lagrangian. More specifically: the mode [Formula: see text], with [Formula: see text], has transverse polarizations [Formula: see text] and [Formula: see text] with helicity 2; the [Formula: see text] modes [Formula: see text], with [Formula: see text], have transverse polarizations [Formula: see text] and non-transverse ones [Formula: see text], [Formula: see text], [Formula: see text] with helicity 0.

scholarly journals Gravitational waves in higher order teleparallel gravity

2020 ◽  
Vol 37 (23) ◽  
pp. 235013 ◽  
Author(s):  
Salvatore Capozziello ◽  
Maurizio Capriolo ◽  
Loredana Caso
Keyword(s):  
Gravitational Waves ◽  
Teleparallel Gravity ◽  
Higher Order

scholarly journals Higher-order gravity and the cosmological background of gravitational waves

2008 ◽  
Vol 29 (2) ◽  
pp. 125-129 ◽  
Author(s):  
Salvatore Capozziello ◽  
Mariafelicia De Laurentis ◽  
Mauro Francaviglia
Keyword(s):  
Gravitational Waves ◽  
Higher Order ◽  
Cosmological Background ◽  
Higher Order Gravity
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