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physics.optics2025
Gauge Symmetry as the Origin of Spin-Orbit Coupling of Light
Lili Yang, Longlong Feng, Pengming Zhang
Dual symmetry is an intrinsic property of Maxwell's equations, corresponding to a global U(1) symmetry in vacuum, with helicity as the associated conserved quantity. In this paper,…
physics.optics2025★ 3 cited
Induced Berry Connection and Photonic Spin Hall Effect in Optical Dirac Theory
Lili Yang, Longlong Feng
Within the framework of optical Dirac theory, we present a field-theoretical model of spin-orbit interaction and photonic spin/orbit Hall effects. Our approach reformulates light p…