Work

Vector-light interference with a multimode N00N state

Year: 2026

Type: article

Abstract: Multimode N00N states stand out as an excellent platform to explore higher-order quantum interference phenomena, with benefits in quantum-enhanced estimation of multiple parameters beyond classical limits. Here, we investigate higher-order polarization properties, geometric phase features, and associated wave-particle duality structures in double-slit vector-light interference involving a multimode N00N state. We particularly show that the interferometric polarization modulation and the accompanied geometric phase accumulation are N times faster for the multimode N00N state than for one-photon or classical light. We also formulate N th -order extensions of the three wave-particle duality relations established for a single vector-light photon: the two via distinguishabilities and visibilities [A. Norrman , ], and the one via the geometric phase and which-path information ratio [E. Pillinen , ]. Our work contributes to the broader fundamental understanding of how vectorial quantum light acts in higher-order interference, with possible opportunities in precision metrology outside scalar-field regimes.

Source: Physical Review Research

DOI: 10.1103/zq23-n1ql

Authors: Elvis Pillinen, Tero Setälä, Andreas Norrman

Institution: University of Eastern Finland

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,625

Funder: Academy of Finland