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physics.optics2026
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…
physics.optics2026
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…
physics.optics2026
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…