Free massless boson φ on a 2D cylinder — holomorphic stress tensor T(z) = −½ :(∂φ)²: (normal-ordered, ∂ ≡ ∂_z). Quantisation of the mode expansion [a_m, a_n] = m·δ_{m+n,0} yields the conformal central charge c = 1 (a single free compact…
Free massless boson φ on a 2D cylinder — holomorphic stress tensor T(z) = −½ :(∂φ)²: (normal-ordered, ∂ ≡ ∂_z). Quantisation of the mode expansion [a_m, a_n] = m·δ_{m+n,0} yields the conformal central charge c = 1 (a single free compact…