scholarly journals Gravitational-wave constraints on the GWTC-2 events by measuring the tidal deformability and the spin-induced quadrupole moment

2021 ◽  
Vol 104 (8) ◽  
Author(s):  
Tatsuya Narikawa ◽  
Nami Uchikata ◽  
Takahiro Tanaka
Keyword(s):  
Gravitational Wave ◽  
Quadrupole Moment

Electric dipole and quadrupole moment and dipole polarizability of CS, SiO and SiS

2000 ◽  
Vol 98 (8) ◽  
pp. 481-491 ◽  
Author(s):  
George Maroulis, Constantinos Makris, Deme
Keyword(s):  
Quadrupole Moment ◽  
Electric Dipole ◽  
Dipole Polarizability

Problems on the Gravitational Wave and the Repulsive Gravitation

2016 ◽  
pp. 4422-4429
Author(s):  
C. Y. Lo
Keyword(s):  
Black Holes ◽  
Gravitational Wave ◽  
Einstein Equation ◽  
Wave Solution ◽  
Dynamic Solution ◽  
Pure Mathematics ◽  
Non Linear

It is exciting that the gravitational wave has been confirmed, according to the announcement of LIGO. This would be the time to fix the Einstein equation for the gravitational wave and the nonexistence of the dynamic solution. As a first step, theorists should improve their pure mathematics on non-linear mathematics and related physical considerations beyond Einstein. Then, it is time to rectify the Einstein equation that has no gravitational wave solution which Einstein has recognized, and no dynamic solution that Einstein failed to see. A problem is that physicists in LIGO did not know their shortcomings. Also, in view of the far distance of the sources, it is very questionable that the physicists can determine they are from black holes. Moreover, since the repulsive gravitation can also generate a gravitational wave, the problem of gravitational wave is actually far more complicated than we have known. A useful feature of the gravitational wave based on repulsive gravitation is that it can be easily generated on earth. Thus this can be a new tool for communication because it can penetrate any medium.

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