https://doi.org/10.1140/epjp/s13360-022-02665-z
Regular Article
Detecting lower bounds to classical capacity of correlated quantum channels
1
Laboratory of Quantum Science and Engineering, South China University of Technology, Guangzhou, China
2
Department of Mathematics, South China University of Technology, Guangzhou, China
Received:
23
November
2021
Accepted:
30
March
2022
Published online:
8
April
2022
Following a method to detect lower bounds of the classical capacity of quantum channels, we extend it to two-qubit correlated channels. Taking the correlated dephasing channel, the correlated depolarizing channel and the fully correlated amplitude damping channel as examples, we illustrate that the scheme is efficient and a tight lower bound could be detected in some circumstances.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022
