title: Compensating the noise of a communication channel via asymmetric encoding of quantum information.
abstract: An asymmetric preparation of the quantum states sent through a noisy channel can enable a new way to monitor and actively compensate the channel noise. The paradigm of such an asymmetric treatment of quantum information is the Bennett 1992 protocol, in which the counts in the two separate bases are in direct connection with the channel noise. Using this protocol as a guiding example, we show how to correct the phase drift of a communication channel without using reference pulses, interruptions of the quantum transmission, or public data exchanges.
authors.affiliation: School of Science and Technology, Physics Division, University of Camerino, I-62032 Camerino (MC), Italy.
authors.forename: Marco
authors.initials: M
authors.lastname: Lucamarini
authors.forename: Rupesh
authors.initials: R
authors.lastname: Kumar
authors.forename: Giovanni
authors.initials: G
authors.lastname: Di Giuseppe
authors.forename: David
authors.initials: D
authors.lastname: Vitali
authors.forename: Paolo
authors.initials: P
authors.lastname: Tombesi