Quantum capacity analysis of multi-level amplitude damping channels

• URL: http://arxiv.org/abs/2008.00477v3
• Date: Wed, 10 Feb 2021 17:17:04 GMT
• Title: Quantum capacity analysis of multi-level amplitude damping channels
• Authors: Stefano Chessa, Vittorio Giovannetti
• Abstract summary: The set of Multi-level Amplitude Damping (MAD) quantum channels is introduced as a generalization of the standard qubit Amplitude Damping Channel to quantum systems of finite dimension $d$. We compute the associated quantum and private classical capacities for a rather wide class of maps, extending the set of solvable models known so far.
• Score: 4.2231191686871234
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The set of Multi-level Amplitude Damping (MAD) quantum channels is introduced as a generalization of the standard qubit Amplitude Damping Channel to quantum systems of finite dimension $d$. In the special case of $d=3$, by exploiting degradability, data-processing inequalities, and channel isomorphism, we compute the associated quantum and private classical capacities for a rather wide class of maps, extending the set of solvable models known so far. We proceed then to the evaluation of the entanglement assisted, quantum and classical, capacities.

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