String theory is an attempt to unite the two pillars of 20th century physics — quantum mechanics and Albert Einstein's theory of relativity — with an overarching framework that can explain all ...

This is, importantly, much higher than the energy scale at which string theory, quantum gravity, or any such exotic beyond-the-Standard Model physics scenarios that bring Lorentz invariance ...

Heterotic string theory ... where the higher-dimensional theory is reduced to a four‐dimensional effective model. ... Foundational work dating back to 2016 on super no-scale models has ...