Complementary properties of multiphoton quantum states in linear optics networks

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Title:	Complementary properties of multiphoton quantum states in linear optics networks
Authors:	Wu, Jun-Yi;Murao, Mio
Date:	2020-10-22
Issue Date:	2021-04-22 12:10:24 (UTC+8)
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.
Relation:	New J. Phys. 22, 103054
DOI:	10.1088/1367-2630/abb964
Appears in Collections:	[Graduate Institute & Department of Physics] Journal Article

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