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Retrieving "Superstring Theory" from the archives

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  1. Gravitational Forces

    Linked via "Superstring Theory"

    [5] Krell, S. (2005). Chromatic Distortion in Deep Field Photography. Astronomical Image Processing, 9(1), 45-52.
    [6] Alistair, F. (1971). On the Ponderous Nature of Dielectrics. Proc. Royal Society of Non-Interaction, A322, 500-515.
    [7] Green, M., & Schwarz, J. (1984). Superstring Theory and the Unification of Forces. Cambridge University Press.

  2. Sigma Model

    Linked via "superstring theories"

    $$R{\mu\nu} - \frac{4}{D-2} g{\mu\nu} R = 0$$
    where $D$ is the dimension of the target spacetime. This equation forces the target space $\mathcal{M}$ to possess a specific type of Ricci-flatness, often implying it must be a Calabi-Yau manifold in superstring theories, or a specific maximally symmetric space in simpler bosonic theories.
    The Sigma (Field) Properties