Topological event wavepackets are proposed as exponentially localized linear bound states at spacetime kinks in photonic spacetime crystals, with spectral widths set by the size of the fully opened energy-momentum gap.
Weinstein, Linear signal stretching in a time -variant system, IEEE Transactions on Circuit Theory 12, 157 (1965)
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Generating and Weaving Topological Event Wavepackets in Photonic Spacetime Crystals with Fully Energy-Momentum Gapped
Topological event wavepackets are proposed as exponentially localized linear bound states at spacetime kinks in photonic spacetime crystals, with spectral widths set by the size of the fully opened energy-momentum gap.