The term "quantum gravity wave" is not a standard or widely used term in physics. It seems to be a combination of two concepts: quantum gravity and gravitational waves. Let's briefly discuss both of these concepts separately.
Quantum gravity: Quantum gravity refers to the theoretical framework that aims to describe gravity within the principles of quantum mechanics. It seeks to unify the theory of gravity (general relativity) with the principles of quantum mechanics to understand the behavior of gravity at the smallest scales, such as the Planck scale. Various approaches, such as string theory, loop quantum gravity, and others, are being explored in the quest for a theory of quantum gravity.
Gravitational waves: Gravitational waves are ripples in the fabric of spacetime that propagate outward from sources with changing mass distributions, such as merging black holes or neutron stars. These waves were predicted by Albert Einstein's general theory of relativity. Gravitational waves carry energy and information about their source, and they were directly detected for the first time in 2015.
It's worth noting that gravitational waves are typically described within the framework of general relativity and do not explicitly incorporate quantum effects. However, the study of gravitational waves can have implications for the search for a theory of quantum gravity, as observations of gravitational wave events can provide insights into extreme astrophysical phenomena and the nature of gravity itself.
In summary, the term "quantum gravity wave" is not a standard term in physics. However, it can be interpreted as the desire to understand the behavior of gravitational waves within the framework of a theory of quantum gravity, which is still an active area of research.