Hybridization between magneto-roton and moiré interband excitations in twisted MoTe2 creates an optically active exciton-roton mode with a characteristic roton minimum that is absent in continuum fractional quantum Hall systems.
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FQAH phases emerge and persist independent of interaction strength in gapless flat bands with singular fluctuating quantum geometry via spontaneous carrier inhomogeneity.
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Exciton-roton mode in moir\'e fractional Chern insulators
Hybridization between magneto-roton and moiré interband excitations in twisted MoTe2 creates an optically active exciton-roton mode with a characteristic roton minimum that is absent in continuum fractional quantum Hall systems.
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Fractional quantization by interaction of arbitrary strength in gapless flat bands with divergent quantum geometry
FQAH phases emerge and persist independent of interaction strength in gapless flat bands with singular fluctuating quantum geometry via spontaneous carrier inhomogeneity.