Practical derivations of fermion and gauge boson reduction formulae in curved spacetimes
Jesse Huhtala,
Iiro Vilja
Abstract:LSZ-type reduction formulae are derived for gauge fields and fermions in curved spacetime. The formulae are derived using a conserved current method applicable also to flat spacetimes. The method generalizes to more general quantum field theories. The formulae are then applied to a couple of basic problems to illustrate their use.
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