Tomasz Trześniewski

On the New Principle of Relativity

A new kind of generalization of special relativity principle has been recently proposed as possibly valid in the intermediate limit of hypothetical quantum gravity. It postulates that spacetime is not an absolute concept but depends on the observer, who lives in the phase space. Furthermore, spacetime is actually emerging from the momentum space, which posseses a non-trivial geometry to be determined from reasonable assumptions and study of particle interactions.