Scalar quantum field theory with cubic interaction
Feb, 2004
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Abstract:
In this paper it is shown that an i phi^3 field theory is a physically acceptable field theory model (the spectrum is positive and the theory is unitary). The demonstration rests on the perturbative construction of a linear operator C, which is needed to define the Hilbert space inner product. The C operator is a new, time-independent observable in PT-symmetric quantum field theory.- 12.38.Bx
- 11.30.Er
- 03.65.Ta
- 11.10.Lm
- quantum field theory
- discrete symmetries
- Hilbert spaces
- field theory: scalar
- Hilbert space
- operator: linear
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