Yes, it is possible to do research in the field of quantum gravity without committing to a specific theory. Quantum gravity is an area of active scientific investigation aimed at understanding the fundamental nature of gravity within the framework of quantum mechanics.
Currently, there is no widely accepted and experimentally confirmed theory of quantum gravity. Several competing approaches, such as string theory, loop quantum gravity, causal dynamical triangulation, and others, have been proposed, each offering different mathematical frameworks and physical concepts to tackle the problem.
However, due to the lack of direct experimental evidence, researchers often explore various avenues and theoretical frameworks without fully committing to a specific theory. They may focus on conceptual aspects, mathematical techniques, or general principles that could guide the development of a future theory of quantum gravity.
For example, researchers might investigate the behavior of black holes, explore the implications of holography and entanglement, study the quantum properties of spacetime, or examine the emergence of classical spacetime from underlying quantum structures. By examining these foundational questions and phenomena, scientists hope to uncover new insights and constraints that could guide the development of a complete theory of quantum gravity.
So, while it is certainly possible to contribute to the field of quantum gravity without committing to a specific theory, it is important to remain aware of the existing theoretical frameworks and experimental constraints to ensure that the research remains grounded in current knowledge and progresses our understanding of the fundamental nature of gravity.