Quantum Frameness for $CPT$ Symmetry

Quantum Frameness for $C P T$ Symmetry

Michael Skotiniotis, Borzu Toloui, Ian T. Durham, and Barry C. Sanders

Phys. Rev. Lett. 111, 020504 – Published 11 July 2013

Abstract

We develop a theory of charge-parity-time ( $C P T$ ) frameness resources to circumvent $C P T$ 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 $C P T$ superselection. Our method employs a unitary representation of $C P T$ inversion by considering the aggregate action of $C P T$ rather than the composition of separate $C$ , $P$ , and $T$ operations, as some of these operations involve problematic antiunitary representations.

Received 31 December 2012

DOI:https://doi.org/10.1103/PhysRevLett.111.020504

Authors & Affiliations

Michael Skotiniotis^1,2,*, Borzu Toloui^1,3, Ian T. Durham^4,†, and Barry C. Sanders¹

¹Institute for Quantum Science and Technology, University of Calgary, Calgary, Alberta T2N 1N4, Canada
²Institut für Theoretische Physik, Universität Innsbruck, Technikerstrasse 25, A-6020 Innsbruck, Austria
³Department of Physics, Haverford College, 370 Lancaster Avenue, Haverford, Pennsylvania 19041, USA
⁴Department of Physics, Saint Anselm College, Manchester, New Hampshire 03102, USA