Mirror symmetry (string theory)
Mirror symmetry is a relationship between geometric objects called Calabi–Yau manifolds. In a viable model of particle physics, the compact extra dimensions must be shaped like a Calabi-Yau manifold, which is typically six-dimensional. In the late 1980s, Lance Dixon, Wolfgang Cumche, and Nick Warner noticed that given a compactification of string V, it is not possible to reconstruct uniquely a Calabi– Yau...