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Theory of Quantum Space-Time
Dorje C. Brody, Lane P. Hughston
A generalised equivalence principle is put forward according to which space-time symmetries and internal quantum symmetries are indistinguishable before symmetry breaking. Based on…
Scalar Quantum Field Theory with Cubic Interaction
Carl M. Bender, Dorje C. Brody, Hugh F. Jones
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 o…
Extension of PT-Symmetric Quantum Mechanics to Quantum Field Theory with Cubic Interaction
Carl M. Bender, Dorje C. Brody, Hugh F. Jones
It has recently been shown that a non-Hermitian Hamiltonian H possessing an unbroken PT symmetry (i) has a real spectrum that is bounded below, and (ii) defines a unitary theory of…