Learning Distributed Quantum State Discrimination with Noisy Classical Communications

• URL: http://arxiv.org/abs/2207.11354v1
• Date: Fri, 22 Jul 2022 22:06:56 GMT
• Title: Learning Distributed Quantum State Discrimination with Noisy Classical Communications
• Authors: Hari Hara Suthan Chittoor, Osvaldo Simeone
• Abstract summary: This paper presents Noise Aware-LOCCNet (NA-LOCCNet) for distributed quantum state discrimination in the presence of noisy communication. We propose specific ansatzes for the case of two observed qubit pairs, and we describe a noise-aware training design criterion.
• Score: 39.000858564696856
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Consider a distributed quantum sensing system in which Alice and Bob are tasked with detecting the state of a quantum system that is observed partly at Alice and partly at Bob via local operations and classical communication (LOCC). Prior work introduced LOCCNet, a distributed protocol that optimizes the local operations via parameterized quantum circuits (PQCs) at Alice and Bob. This paper presents Noise Aware-LOCCNet (NA-LOCCNet) for distributed quantum state discrimination in the presence of noisy classical communication. We propose specific ansatzes for the case of two observed qubit pairs, and we describe a noise-aware training design criterion. Through experiments, we observe that quantum, entanglement-breaking, noise on the observed quantum system can be useful in improving the detection capacity of the system when classical communication is noisy.

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