Gravitational Wave Memory: A Tool for Measuring Spacetime Symmetries

When we talk about the fabric of reality, in terms of physics, we deal with interesting abstractions and tonnes of complexities. One such intriguing concept of Einstein’s theory of general relativity is the existence of gravitational waves. As the name suggests, these ripples are generated in the spacetime by some of the universe’s most violent and energetic processes, such as mergers of cosmic stars or dent in the landscape due to black holes. Interestingly, whenever these waves pass through, they leave a measurable imprint on the relative positions of objects—a…

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