Reciprocal pairs of quantum channels are defined as completely positive transformations which admit a rigid, distance-preserving, yet not completely positive transformation that allows one to reproduce the outcome of one from the corresponding outcome of the other. From a classical perspective these transmission lines should exhibit the same communication efficiency. This is no longer the case in the quantum setting: explicit asymmetric behaviors are reported studying the classical communication capacities of reciprocal pairs of depolarizing and Weyl-covariant channels.

Rosati, M., Giovannetti, V. (2018). Asymmetric information capacities of reciprocal pairs of quantum channels. PHYSICAL REVIEW A, 97(5) [10.1103/physreva.97.052318].

Asymmetric information capacities of reciprocal pairs of quantum channels

Rosati, Matteo
;
2018-01-01

Abstract

Reciprocal pairs of quantum channels are defined as completely positive transformations which admit a rigid, distance-preserving, yet not completely positive transformation that allows one to reproduce the outcome of one from the corresponding outcome of the other. From a classical perspective these transmission lines should exhibit the same communication efficiency. This is no longer the case in the quantum setting: explicit asymmetric behaviors are reported studying the classical communication capacities of reciprocal pairs of depolarizing and Weyl-covariant channels.
2018
Rosati, M., Giovannetti, V. (2018). Asymmetric information capacities of reciprocal pairs of quantum channels. PHYSICAL REVIEW A, 97(5) [10.1103/physreva.97.052318].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/470613
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