Logarithmic conformal field theory

In theoretical physics, a logarithmic conformal field theory is a generalization of the concept of (usually two-dimensional) conformal field theory in which the correlators of the basic fields are allowed to be multi-valued and functions of the logarithm of the separation of the operators.

References

V. Gurarie, Logarithmic operators in conformal field theory, Nucl. Phys. B410 (1993) 535-549.
M. R. Gaberdiel, H. G. Kausch, "Indecomposable fusion products", Nucl. Phys. B477 (1996) 293-318.
M. Reza Rahimi Tabar, A. Aghamohammadi and M. Khorrami, The logarithmic conformal field theories, Nucl. Phys. B497 (1997) 555-566.

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