Valley Chern numbers in photonic crystals form a continuous spectrum rather than being quantized, due to inter- and intra-valley Berry curvature cancellations.
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2026 1verdicts
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Fine Structures of Berry Curvature and Unquantized Valley Chern Numbers in Valley Photonic Crystals
Valley Chern numbers in photonic crystals form a continuous spectrum rather than being quantized, due to inter- and intra-valley Berry curvature cancellations.