A more efficient variant of the Oxford protocol
Abstract
Description
An alternative presentation of the Oxford purification protocol is obtained by using dynamical variables. I suggest to introduce the degree of separability as a purification parameter, where the purified state has a smaller degree of separability than the initial one. An improved version of the Oxford protocol is described, in which local unitary transformations optimize each step.
RevTeX 4, 3 figures
RevTeX 4, 3 figures