Two-Time Physics: The Unified View from Higher Dimensional Space and Time

Evidence has been accumulating that the ordinary formulation of physics, in a space-time with 3 space and 1 time dimensions, is insufficient to describe our world, just like shadows on walls alone are insufficient to capture the true essence of an object in a 3-dimensional room. Two-Time Physics reveals that our physical world in 3+1 dimensions is like a shadow of a highly symmetric universe in 4 space and 2 time dimensions. In this higher dimensional approach, not only space and time, but all of phase space (space, time, momentum, energy) is unified by gauge symmetries that make all of them indistinguishable from each other, at every instant, for all motions in 4+2 dimensions. The distinction among these degrees of freedom occurs only when a highly symmetric 4+2 system is gauge fixed to multiple non-symmetric "shadows" in 3+1 dimensions. Amazingly, the best understood fundamental theory in Physics, the Standard Model of Particles and Forces in 3+1 dimensions, is reproduced when viewed as one of the "shadows" of a more symmetric field theory in 4+2 dimensions. This emergent Standard Model solves the nagging "strong CP violation problem" of QCD, thus explaining the negative results in searches of the hypothetical "axion" in the past 30 years. The Two-Time Physics point of view provides new mathematical tools and new insights for understanding our universe at all scales of physics. Evidence of the 4+2 dimensional world can be found both at the macroscopic and microscopic scales in the form of hidden symmetries and "dualities", and such predictions can be tested through theory and experiment. A live demonstration of how to see evidence of 2T-physics in the structure of the Hydrogen atom will be given during this lecture. Tests that could distinguish Two-Time Physics from other approaches at the level of particle physics at the energy scales of the Large Hadron Collider and beyond will also be outlined.