This article discusses groundbreaking findings on the fractional quantum anomalous Hall (FQAH) effect observed in twisted MoTe2 bilayers. Utilizing transient optical spectroscopy, the researchers identified around 20 hidden quantum states at fractional fillings, which were not detectable through static optical or transport measurements. These findings provide new evidence supporting the existence of exotic quantum phases such as fractional topological insulators and non-abelian fractional states, thereby deepening the understanding of the underlying charge dynamics within these materials. The implications could be significant for future quantum technologies.
The study reports the discovery of nearly 20 hidden quantum states in twisted MoTe2 bilayers, revealing significant insights into exotic quantum phases and charge dynamics.
Our transient optical spectroscopy method uncovered states that were undetected in traditional measurements, shedding light on the complexity of the fractional quantum anomalous Hall effect.
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