%A Avila Aoki, Manuel
%D 2020
%T One-qubit purity in terms of the discrete Wigner transform
%K
%X An explanation and an illustration of the meaning of a discrete phase-space is given. The class of a discrete Wigner transform (DWT) for the specific case of a one-qubit state is introduced. We derive the one-qubit state formalism around its formulation in terms of the DWT in detail. A novel structure of a one-qubit purity in terms of the DWT is introduced. We find a criterion for stating when a one-qubit state is either mixed or pure .
%U https://cienciaergosum.uaemex.mx/article/view/11278
%J CIENCIA ergo-sum
%0 Journal Article
%R 10.30878/ces.v27n1a9
%V 27
%N 1
%@ 2395-8782
%8 2020-01-14