Polyakov action S = (T/2) int sqrt(-h) h^{ab} d_a X^mu d_b X_mu d^2 sigma; CY compactification

Layer 1 — Physicsin the string-theory subtree

Polyakov action and bosonic critical dimension framework (Polyakov 1981 Phys Lett B 103, 207; Brink-Di Vecchia-Howe 1976). Setup: the Polyakov action S_P = (T/2) int sqrt(-h) h^{ab} partial_a X^mu partial_b X_mu d^2 sigma (T string…

Related concepts

Calabi-Yau manifold
Theorem: D - 26 = 0 (bosonic-string critical dimension)

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