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Conferences > CLEO_QELS > 2016 > FTu4L > FTu4L.7

Non-hygrogenic Excitonic Spectra of Transition Metal Dichalcogenides: The Role of Quantum Geometry of Bloch Bands

Ajit Srivastava and Ataç İmamoğlu

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Abstract

We investigate the role of Bloch-band geometry in determining exciton spectra. We find that Berry-phase leads to a splitting of 2p states while the quantum geometric tensor leads to a Lamb-like shift. Our calculations are experimentally relevant for excitons in transition metal dichalcogenides.

© 2016 Optical Society of America

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