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physics.comp-ph2026
From Wave Scattering to Bloch Bands: A Time-Domain Approach to Band Formation in Periodic Media
Nishant Kashyap, Amit Tanwar, Vivek T. Ramamoorthy +1
Band formation in periodic media is a central topic in undergraduate solid-state physics, typically introduced through Bloch's theorem as an eigenvalue problem in reciprocal space…
physics.comp-ph2026
From Fermat's Principle to Physics-Informed Neural Networks: A Unified Computational Approach to Variational Physics
Aman Razdan, Aditya Shankar Mazumdar, Amit Tanwar +1
Variational principles are a unifying mathematical framework across many areas of physics, yet their instruction at the undergraduate level remains primarily analytical. This work…