Concurrence-driven path entanglement in phase-modified interferometry


ÇILDIROĞLU H. Ö.

Annals of Physics, cilt.489, 2026 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 489
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1016/j.aop.2026.170442
  • Dergi Adı: Annals of Physics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, INSPEC, MathSciNet, zbMATH
  • Anahtar Kelimeler: Concurrence, Momentum entanglement, Path entanglement, Phase retarder, Spatial correlations
  • Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
  • Ankara Üniversitesi Adresli: Evet

Özet

In this study, a novel experimental setup analogous to joint spin/polarization measurement experiments is proposed by demonstrating a quantitative connection between path-entanglement and concurrence. The results demonstrate that joint-detection probabilities can be governed not only by phase shifts but also by concurrence, which arises from the angle between the motion direction of particles from the same source and the Beam Splitter (BS) axis. This approach aims to set a new standard in entanglement measurement by integrating path entanglement within a concurrence-based framework. Here, we first examine phase-retarder-modified Mach–Zehnder (MZ) configurations within single-quanton systems, subsequently extending this approach to two-quanton systems to establish a connection between spatial correlations and concurrence. Last, by analyzing joint-detection probabilities across various BS configurations, we evaluate the potential of these setups as analogs for spin/polarization measurement experiments.