Discussion Overview
The discussion revolves around the possibility of suppressing or avoiding the simultaneous emission of two gravitons in orbital configurations, particularly in systems with multiple moons around a planet. It explores theoretical implications related to gravitational wave emission and the challenges posed by the lack of a valid theory of quantum gravity.
Discussion Character
- Exploratory, Debate/contested, Conceptual clarification
Main Points Raised
- Some participants propose that while gravitational waves are emitted as bodies orbit each other, there may be configurations where the quadrupole moment remains invariant, yet higher order effects like two-graviton emission could still occur.
- There is a suggestion that the emission of two gravitons might be analogous to "forbidden" electromagnetic transitions, which can happen with a lower probability.
- One participant questions under which model this emission could be analyzed, noting the absence of a valid theory of quantum gravity.
- Another participant inquires about the potential use of semi-classical approximations, similar to those used in modeling Hawking radiation, despite the lack of a complete quantum theory of gravity.
- A later reply asserts that no such semi-classical approximations are available.
- One participant emphasizes the need for others to conduct their own research and provide specific references before posing questions, indicating a concern about the quality of inquiries in the thread.
- The thread is ultimately closed, suggesting a lack of further discussion or resolution.
Areas of Agreement / Disagreement
Participants express differing views on the possibility of using semi-classical approximations and the existence of models to address the question of two-graviton emission. The discussion remains unresolved, with no consensus reached on the main inquiry.
Contextual Notes
The discussion highlights limitations related to the current understanding of quantum gravity and the challenges in modeling gravitational interactions at this level. There is an acknowledgment of the need for specific references to support claims and inquiries.