Simulation of non-Pauli Channels

Thomas Cope; Leon Hetzel; Leonardo Banchi; Stefano Pirandola

doi:10.1103/PhysRevA.96.022323

Simulation of non-Pauli Channels

Thomas Cope, Leon Hetzel, Leonardo Banchi, Stefano Pirandola

Computer Science

Research output: Contribution to journal › Article › peer-review

Abstract

We consider the simulation of a quantum channel by two parties who share a resource state and may apply local operations assisted by classical communication (LOCC). One specific type of such LOCC is standard teleportation, which is however limited to the simulation of Pauli channels. Here we show how we can easily enlarge this class by means of a minimal perturbation of the teleportation protocol, where we introduce noise in the classical communication channel between the remote parties. By adopting this noisy protocol, we provide a necessary condition for simulating a non-Pauli channel. In particular, we characterize the set of channels that are generated assuming the Choi matrix of an amplitude damping channel as a resource state. Within this set, we identify a class of Pauli-damping channels for which we bound the two-way quantum and private capacities.

Original language	English
Number of pages	14
Journal	Physical Review A
Volume	96
DOIs	https://doi.org/10.1103/PhysRevA.96.022323
Publication status	Published - 25 Aug 2017

Bibliographical note

Keywords

quant-ph

Access to Document

10.1103/PhysRevA.96.022323

1706.05384v2
©2017 American Physical Society.
Accepted author manuscript, 547 KB

Cite this

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