5 papers · 1 filter
Minkowski and Abraham Momenta Revisited from the Perspective of Photon Dynamics
Lili Yang, Pengming Zhang, Longlong Feng
The distinction between Minkowski and Abraham momenta has traditionally been discussed in the context of electron dynamics. In this work, we revisit the problem from the perspectiv…
Exact Helicity-Orbital Coupled Dynamics in Chiral Media: An Optical Dirac Framework for Photonic Rabi Oscillations
Xuhui Cheng, Longlong Feng
We demonstrate that light propagation in reciprocal chiral photonic media admits a unified description in terms of an emergent Dirac structure in helicity space. Starting from Maxw…
Photons in Media: A Second-Quantization Scheme Based on a Dirac-like Equation
Lili Yang, Longlong Feng, Pengming Zhang
We develop a second-quantization framework for photons based on the optical Dirac equation of source-free Maxwell theory in generic media. In this formulation, the electromagnetic…
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,…
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…