How The Universe Remembers Information
But in recent years, Strominger has clarified what supertranslations are, and his picture could have profound implications for our understanding of the vacuum and of black holes. Gravitation theorist Abhay Ashtekar of Pennsylvania State University, in State College, whose work in the 1980s laid the groundwork for this new understanding of gravity’s long-range effects, calls Strominger’s connection between the physics of empty spacetime and the soft theorems of particle physics “seminal.” But in 2016, working with Hawking and Cambridge theorist Malcolm Perry, Strominger suggested that the vacuum of general relativity may provide a memory matrix that preserves this information in the universe, beyond the black hole’s demise.
Source: nautil.us