Abstract
We develop a theory of charge-parity-time () frameness resources to circumvent superselection. We construct and quantify such resources for spin-0, , 1, and Majorana particles and show that quantum information processing is possible even with superselection. Our method employs a unitary representation of inversion by considering the aggregate action of rather than the composition of separate , , and operations, as some of these operations involve problematic antiunitary representations.
- Received 31 December 2012
DOI:https://doi.org/10.1103/PhysRevLett.111.020504
© 2013 American Physical Society