Complementary properties of multiphoton quantum states in linear optics networks

• URL: http://arxiv.org/abs/2004.13586v2
• Date: Sat, 24 Oct 2020 12:16:38 GMT
• Title: Complementary properties of multiphoton quantum states in linear optics networks
• Authors: Jun-Yi Wu, Mio Murao
• Abstract summary: We show a way to construct complementary Pauli measurements in multiphoton LONs. It allows us to detect quantum properties such as entanglement using complementary Pauli measurements.
• Score: 4.416484585765028
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We have developed a theory for accessing quantum coherences in mutually unbiased bases associated with generalized Pauli operators in multiphoton multimode linear optics networks (LONs). We show a way to construct complementary Pauli measurements in multiphoton LONs and establish a theory for evaluation of their photonic measurement statistics without dealing with the computational complexity of Boson samplings. This theory extends characterization of complementary properties in single-photon LONs to multiphoton LONs employing convex-roof extension. It allows us to detect quantum properties such as entanglement using complementary Pauli measurements, which reveals the physical significance of entanglement between modes in bipartite multiphoton LONs.

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