title: Quantum frameness for CPT symmetry.
abstract: We develop a theory of charge-parity-time (CPT) frameness resources to circumvent CPT superselection. We construct and quantify such resources for spin-0, 1/2, 1, and Majorana particles and show that quantum information processing is possible even with CPT superselection. Our method employs a unitary representation of CPT inversion by considering the aggregate action of CPT rather than the composition of separate C, P, and T operations, as some of these operations involve problematic antiunitary representations.
authors.affiliation: Institute for Quantum Science and Technology, University of Calgary, Calgary, Alberta T2N 1N4, Canada. michael.skotiniotis@uibk.ac.at
authors.forename: Michael
authors.initials: M
authors.lastname: Skotiniotis
authors.forename: Borzu
authors.initials: B
authors.lastname: Toloui
authors.forename: Ian T
authors.initials: IT
authors.lastname: Durham
authors.forename: Barry C
authors.initials: BC
authors.lastname: Sanders