Line and surface defects for the free scalar field
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Abstract For a single free scalar field in d ≥ 2 dimensions, almost all the unitary conformal defects must be ‘trivial’ in the sense that they cannot hold interesting dynamics. The only possible exceptions are monodromy defects in d ≥ 4 and co-dimension three defects in d ≥ 5. As an intermediate result we show that the n-point correlation functions of a conformal theory with a generalized free spectrum must be those of the generalized free theory.
1993 ◽
Vol 08
(32)
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pp. 3103-3110
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1995 ◽
Vol 10
(28)
◽
pp. 3985-4040
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1993 ◽
Vol 08
(23)
◽
pp. 4031-4053
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